Finding the Third Proportional to 112,542.50 and 243,769

Step by Step Solution

1. Step 1: Write the proportion equation
   112,542.50 : 243,769 = 243,769 : x
2. Step 2: Convert to fraction form
   112,542.50/243,769 = 243,769/x
3. Step 3: Cross multiply
   112,542.50x = 243,769 × 243,769
4. Step 4: Simplify right side
   112,542.50x = 59,423,325,361
5. Step 5: Solve for x
   x = 59,423,325,361/112,542.50
6. Step 6: Final answer
   x = 528,007.87