Finding the Third Proportional to 112,860 and 243,540

Step by Step Solution

1. Step 1: Write the proportion equation
   112,860 : 243,540 = 243,540 : x
2. Step 2: Convert to fraction form
   112,860/243,540 = 243,540/x
3. Step 3: Cross multiply
   112,860x = 243,540 × 243,540
4. Step 4: Simplify right side
   112,860x = 59,311,731,600
5. Step 5: Solve for x
   x = 59,311,731,600/112,860
6. Step 6: Final answer
   x = 525,533.68