Finding the Third Proportional to 31,900,317 and 69,976,722

Step by Step Solution

1. Step 1: Write the proportion equation
   31,900,317 : 69,976,722 = 69,976,722 : x
2. Step 2: Convert to fraction form
   31,900,317/69,976,722 = 69,976,722/x
3. Step 3: Cross multiply
   31,900,317x = 69,976,722 × 69,976,722
4. Step 4: Simplify right side
   31,900,317x = 4,896,741,621,865,284
5. Step 5: Solve for x
   x = 4,896,741,621,865,284/31,900,317
6. Step 6: Final answer
   x = 153,501,346.77