Finding the Third Proportional to 284,499 and 400,261.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,499 : 400,261.50 = 400,261.50 : x
2. Step 2: Convert to fraction form
   284,499/400,261.50 = 400,261.50/x
3. Step 3: Cross multiply
   284,499x = 400,261.50 × 400,261.50
4. Step 4: Simplify right side
   284,499x = 160,209,268,382.25
5. Step 5: Solve for x
   x = 160,209,268,382.25/284,499
6. Step 6: Final answer
   x = 563,127.70