Finding the Third Proportional to 31,473,145 and 67,729,264

Step by Step Solution

1. Step 1: Write the proportion equation
   31,473,145 : 67,729,264 = 67,729,264 : x
2. Step 2: Convert to fraction form
   31,473,145/67,729,264 = 67,729,264/x
3. Step 3: Cross multiply
   31,473,145x = 67,729,264 × 67,729,264
4. Step 4: Simplify right side
   31,473,145x = 4,587,253,201,981,696
5. Step 5: Solve for x
   x = 4,587,253,201,981,696/31,473,145
6. Step 6: Final answer
   x = 145,751,344.58