Finding the Third Proportional to 115,393.50 and 242,449.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,393.50 : 242,449.50 = 242,449.50 : x
2. Step 2: Convert to fraction form
   115,393.50/242,449.50 = 242,449.50/x
3. Step 3: Cross multiply
   115,393.50x = 242,449.50 × 242,449.50
4. Step 4: Simplify right side
   115,393.50x = 58,781,760,050.25
5. Step 5: Solve for x
   x = 58,781,760,050.25/115,393.50
6. Step 6: Final answer
   x = 509,402.70