Finding the Third Proportional to 31,510,647 and 68,399,154

Step by Step Solution

1. Step 1: Write the proportion equation
   31,510,647 : 68,399,154 = 68,399,154 : x
2. Step 2: Convert to fraction form
   31,510,647/68,399,154 = 68,399,154/x
3. Step 3: Cross multiply
   31,510,647x = 68,399,154 × 68,399,154
4. Step 4: Simplify right side
   31,510,647x = 4,678,444,267,915,716
5. Step 5: Solve for x
   x = 4,678,444,267,915,716/31,510,647
6. Step 6: Final answer
   x = 148,471,856.76