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Finding the Third Proportional to 668,978 and 953,639

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Solution

The third proportional to 668,978 and 953,639 is: 1,359,427.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,978 : 953,639 = 953,639 : x
  2. Step 2: Convert to fraction form
    668,978/953,639 = 953,639/x
  3. Step 3: Cross multiply
    668,978x = 953,639 × 953,639
  4. Step 4: Simplify right side
    668,978x = 909,427,342,321
  5. Step 5: Solve for x
    x = 909,427,342,321/668,978
  6. Step 6: Final answer
    x = 1,359,427.88

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