Finding the Third Proportional to 30,715,060 and 67,215,460

Step by Step Solution

1. Step 1: Write the proportion equation
   30,715,060 : 67,215,460 = 67,215,460 : x
2. Step 2: Convert to fraction form
   30,715,060/67,215,460 = 67,215,460/x
3. Step 3: Cross multiply
   30,715,060x = 67,215,460 × 67,215,460
4. Step 4: Simplify right side
   30,715,060x = 4,517,918,063,011,600
5. Step 5: Solve for x
   x = 4,517,918,063,011,600/30,715,060
6. Step 6: Final answer
   x = 147,091,298.63