Finding the Third Proportional to 53,017.50 and 115,561.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,017.50 : 115,561.50 = 115,561.50 : x
2. Step 2: Convert to fraction form
   53,017.50/115,561.50 = 115,561.50/x
3. Step 3: Cross multiply
   53,017.50x = 115,561.50 × 115,561.50
4. Step 4: Simplify right side
   53,017.50x = 13,354,460,282.25
5. Step 5: Solve for x
   x = 13,354,460,282.25/53,017.50
6. Step 6: Final answer
   x = 251,887.78