Finding the Third Proportional to 117,955,992,708 and 259,955,173,417.50

Step by Step Solution

1. Step 1: Write the proportion equation
   117,955,992,708 : 259,955,173,417.50 = 259,955,173,417.50 : x
2. Step 2: Convert to fraction form
   117,955,992,708/259,955,173,417.50 = 259,955,173,417.50/x
3. Step 3: Cross multiply
   117,955,992,708x = 259,955,173,417.50 × 259,955,173,417.50
4. Step 4: Simplify right side
   117,955,992,708x = 67,576,692,186,522,494,959,616
5. Step 5: Solve for x
   x = 67,576,692,186,522,494,959,616/117,955,992,708
6. Step 6: Final answer
   x = 572,897,490,285.28