Finding the Third Proportional to 550,591.50 and 740,998.50

Step by Step Solution

1. Step 1: Write the proportion equation
   550,591.50 : 740,998.50 = 740,998.50 : x
2. Step 2: Convert to fraction form
   550,591.50/740,998.50 = 740,998.50/x
3. Step 3: Cross multiply
   550,591.50x = 740,998.50 × 740,998.50
4. Step 4: Simplify right side
   550,591.50x = 549,078,777,002.25
5. Step 5: Solve for x
   x = 549,078,777,002.25/550,591.50
6. Step 6: Final answer
   x = 997,252.55