Finding the Third Proportional to 30,715,088 and 67,215,520

Step by Step Solution

1. Step 1: Write the proportion equation
   30,715,088 : 67,215,520 = 67,215,520 : x
2. Step 2: Convert to fraction form
   30,715,088/67,215,520 = 67,215,520/x
3. Step 3: Cross multiply
   30,715,088x = 67,215,520 × 67,215,520
4. Step 4: Simplify right side
   30,715,088x = 4,517,926,128,870,400
5. Step 5: Solve for x
   x = 4,517,926,128,870,400/30,715,088
6. Step 6: Final answer
   x = 147,091,427.15