Finding the Third Proportional to 572,432 and 1,243,280

Step by Step Solution

1. Step 1: Write the proportion equation
   572,432 : 1,243,280 = 1,243,280 : x
2. Step 2: Convert to fraction form
   572,432/1,243,280 = 1,243,280/x
3. Step 3: Cross multiply
   572,432x = 1,243,280 × 1,243,280
4. Step 4: Simplify right side
   572,432x = 1,545,745,158,400
5. Step 5: Solve for x
   x = 1,545,745,158,400/572,432
6. Step 6: Final answer
   x = 2,700,312.28