Finding the Third Proportional to 28,164,422 and 60,370,978

Step by Step Solution

1. Step 1: Write the proportion equation
   28,164,422 : 60,370,978 = 60,370,978 : x
2. Step 2: Convert to fraction form
   28,164,422/60,370,978 = 60,370,978/x
3. Step 3: Cross multiply
   28,164,422x = 60,370,978 × 60,370,978
4. Step 4: Simplify right side
   28,164,422x = 3,644,654,984,676,484
5. Step 5: Solve for x
   x = 3,644,654,984,676,484/28,164,422
6. Step 6: Final answer
   x = 129,406,347.65