Finding the Third Proportional to 438,528 and 1,025,280

Step by Step Solution

1. Step 1: Write the proportion equation
   438,528 : 1,025,280 = 1,025,280 : x
2. Step 2: Convert to fraction form
   438,528/1,025,280 = 1,025,280/x
3. Step 3: Cross multiply
   438,528x = 1,025,280 × 1,025,280
4. Step 4: Simplify right side
   438,528x = 1,051,199,078,400
5. Step 5: Solve for x
   x = 1,051,199,078,400/438,528
6. Step 6: Final answer
   x = 2,397,108.23