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Finding the Third Proportional to 31,045,991 and 65,308,978

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Solution

The third proportional to 31,045,991 and 65,308,978 is: 137,385,294.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,045,991 : 65,308,978 = 65,308,978 : x
  2. Step 2: Convert to fraction form
    31,045,991/65,308,978 = 65,308,978/x
  3. Step 3: Cross multiply
    31,045,991x = 65,308,978 × 65,308,978
  4. Step 4: Simplify right side
    31,045,991x = 4,265,262,607,404,484
  5. Step 5: Solve for x
    x = 4,265,262,607,404,484/31,045,991
  6. Step 6: Final answer
    x = 137,385,294.20

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