Finding the Third Proportional to 30,715,055 and 67,215,454

Step by Step Solution

1. Step 1: Write the proportion equation
   30,715,055 : 67,215,454 = 67,215,454 : x
2. Step 2: Convert to fraction form
   30,715,055/67,215,454 = 67,215,454/x
3. Step 3: Cross multiply
   30,715,055x = 67,215,454 × 67,215,454
4. Step 4: Simplify right side
   30,715,055x = 4,517,917,256,426,116
5. Step 5: Solve for x
   x = 4,517,917,256,426,116/30,715,055
6. Step 6: Final answer
   x = 147,091,296.32