Finding the Third Proportional to 284,456.25 and 611,086.50

Step by Step Solution

1. Step 1: Write the proportion equation
   284,456.25 : 611,086.50 = 611,086.50 : x
2. Step 2: Convert to fraction form
   284,456.25/611,086.50 = 611,086.50/x
3. Step 3: Cross multiply
   284,456.25x = 611,086.50 × 611,086.50
4. Step 4: Simplify right side
   284,456.25x = 373,426,710,482.25
5. Step 5: Solve for x
   x = 373,426,710,482.25/284,456.25
6. Step 6: Final answer
   x = 1,312,773.79