Finding the Third Proportional to 12,485,972,292 and 29,464,659,789

Step by Step Solution

1. Step 1: Write the proportion equation
   12,485,972,292 : 29,464,659,789 = 29,464,659,789 : x
2. Step 2: Convert to fraction form
   12,485,972,292/29,464,659,789 = 29,464,659,789/x
3. Step 3: Cross multiply
   12,485,972,292x = 29,464,659,789 × 29,464,659,789
4. Step 4: Simplify right side
   12,485,972,292x = 868,166,176,481,513,570,304
5. Step 5: Solve for x
   x = 868,166,176,481,513,570,304/12,485,972,292
6. Step 6: Final answer
   x = 69,531,323,326.56