Finding the Third Proportional to 112,320 and 243,432

Step by Step Solution

1. Step 1: Write the proportion equation
   112,320 : 243,432 = 243,432 : x
2. Step 2: Convert to fraction form
   112,320/243,432 = 243,432/x
3. Step 3: Cross multiply
   112,320x = 243,432 × 243,432
4. Step 4: Simplify right side
   112,320x = 59,259,138,624
5. Step 5: Solve for x
   x = 59,259,138,624/112,320
6. Step 6: Final answer
   x = 527,592.05