Finding the Third Proportional to 53,986.50 and 117,799.31

Step by Step Solution

1. Step 1: Write the proportion equation
   53,986.50 : 117,799.31 = 117,799.31 : x
2. Step 2: Convert to fraction form
   53,986.50/117,799.31 = 117,799.31/x
3. Step 3: Cross multiply
   53,986.50x = 117,799.31 × 117,799.31
4. Step 4: Simplify right side
   53,986.50x = 13,876,678,025.47
5. Step 5: Solve for x
   x = 13,876,678,025.47/53,986.50
6. Step 6: Final answer
   x = 257,039.78