Finding the Third Proportional to 31,859,466 and 69,912,076

Step by Step Solution

1. Step 1: Write the proportion equation
   31,859,466 : 69,912,076 = 69,912,076 : x
2. Step 2: Convert to fraction form
   31,859,466/69,912,076 = 69,912,076/x
3. Step 3: Cross multiply
   31,859,466x = 69,912,076 × 69,912,076
4. Step 4: Simplify right side
   31,859,466x = 4,887,698,370,629,776
5. Step 5: Solve for x
   x = 4,887,698,370,629,776/31,859,466
6. Step 6: Final answer
   x = 153,414,321.84