Finding the Third Proportional to 115,339.50 and 253,395

Step by Step Solution

1. Step 1: Write the proportion equation
   115,339.50 : 253,395 = 253,395 : x
2. Step 2: Convert to fraction form
   115,339.50/253,395 = 253,395/x
3. Step 3: Cross multiply
   115,339.50x = 253,395 × 253,395
4. Step 4: Simplify right side
   115,339.50x = 64,209,026,025
5. Step 5: Solve for x
   x = 64,209,026,025/115,339.50
6. Step 6: Final answer
   x = 556,695.89