Finding the Third Proportional to 31,516,724 and 69,012,158

Step by Step Solution

1. Step 1: Write the proportion equation
   31,516,724 : 69,012,158 = 69,012,158 : x
2. Step 2: Convert to fraction form
   31,516,724/69,012,158 = 69,012,158/x
3. Step 3: Cross multiply
   31,516,724x = 69,012,158 × 69,012,158
4. Step 4: Simplify right side
   31,516,724x = 4,762,677,951,816,964
5. Step 5: Solve for x
   x = 4,762,677,951,816,964/31,516,724
6. Step 6: Final answer
   x = 151,115,894.91