Finding the Third Proportional to 115,560 and 252,388.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,560 : 252,388.50 = 252,388.50 : x
2. Step 2: Convert to fraction form
   115,560/252,388.50 = 252,388.50/x
3. Step 3: Cross multiply
   115,560x = 252,388.50 × 252,388.50
4. Step 4: Simplify right side
   115,560x = 63,699,954,932.25
5. Step 5: Solve for x
   x = 63,699,954,932.25/115,560
6. Step 6: Final answer
   x = 551,228.41