Finding the Third Proportional to 31,691,592 and 69,458,670

Step by Step Solution

1. Step 1: Write the proportion equation
   31,691,592 : 69,458,670 = 69,458,670 : x
2. Step 2: Convert to fraction form
   31,691,592/69,458,670 = 69,458,670/x
3. Step 3: Cross multiply
   31,691,592x = 69,458,670 × 69,458,670
4. Step 4: Simplify right side
   31,691,592x = 4,824,506,838,168,900
5. Step 5: Solve for x
   x = 4,824,506,838,168,900/31,691,592
6. Step 6: Final answer
   x = 152,233,022.51