Finding the Third Proportional to 123,432 and 265,560

Step by Step Solution

1. Step 1: Write the proportion equation
   123,432 : 265,560 = 265,560 : x
2. Step 2: Convert to fraction form
   123,432/265,560 = 265,560/x
3. Step 3: Cross multiply
   123,432x = 265,560 × 265,560
4. Step 4: Simplify right side
   123,432x = 70,522,113,600
5. Step 5: Solve for x
   x = 70,522,113,600/123,432
6. Step 6: Final answer
   x = 571,343.85