Finding the Third Proportional to 243,000 and 529,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   243,000 : 529,861.50 = 529,861.50 : x
2. Step 2: Convert to fraction form
   243,000/529,861.50 = 529,861.50/x
3. Step 3: Cross multiply
   243,000x = 529,861.50 × 529,861.50
4. Step 4: Simplify right side
   243,000x = 280,753,209,182.25
5. Step 5: Solve for x
   x = 280,753,209,182.25/243,000
6. Step 6: Final answer
   x = 1,155,363.00