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Finding the Third Proportional to 66,978 and 103,791

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Solution

The third proportional to 66,978 and 103,791 is: 160,837.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,978 : 103,791 = 103,791 : x
  2. Step 2: Convert to fraction form
    66,978/103,791 = 103,791/x
  3. Step 3: Cross multiply
    66,978x = 103,791 × 103,791
  4. Step 4: Simplify right side
    66,978x = 10,772,571,681
  5. Step 5: Solve for x
    x = 10,772,571,681/66,978
  6. Step 6: Final answer
    x = 160,837.46

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