Finding the Third Proportional to 53,357.25 and 77,281.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,357.25 : 77,281.50 = 77,281.50 : x
2. Step 2: Convert to fraction form
   53,357.25/77,281.50 = 77,281.50/x
3. Step 3: Cross multiply
   53,357.25x = 77,281.50 × 77,281.50
4. Step 4: Simplify right side
   53,357.25x = 5,972,430,242.25
5. Step 5: Solve for x
   x = 5,972,430,242.25/53,357.25
6. Step 6: Final answer
   x = 111,932.87