Finding the Third Proportional to 140,800.50 and 291,580.50

Step by Step Solution

1. Step 1: Write the proportion equation
   140,800.50 : 291,580.50 = 291,580.50 : x
2. Step 2: Convert to fraction form
   140,800.50/291,580.50 = 291,580.50/x
3. Step 3: Cross multiply
   140,800.50x = 291,580.50 × 291,580.50
4. Step 4: Simplify right side
   140,800.50x = 85,019,187,980.25
5. Step 5: Solve for x
   x = 85,019,187,980.25/140,800.50
6. Step 6: Final answer
   x = 603,827.32