Finding the Third Proportional to 31,519,562 and 69,017,788

Step by Step Solution

1. Step 1: Write the proportion equation
   31,519,562 : 69,017,788 = 69,017,788 : x
2. Step 2: Convert to fraction form
   31,519,562/69,017,788 = 69,017,788/x
3. Step 3: Cross multiply
   31,519,562x = 69,017,788 × 69,017,788
4. Step 4: Simplify right side
   31,519,562x = 4,763,455,060,412,944
5. Step 5: Solve for x
   x = 4,763,455,060,412,944/31,519,562
6. Step 6: Final answer
   x = 151,126,943.34