Finding the Third Proportional to 489,853 and 749,323.50

Step by Step Solution

1. Step 1: Write the proportion equation
   489,853 : 749,323.50 = 749,323.50 : x
2. Step 2: Convert to fraction form
   489,853/749,323.50 = 749,323.50/x
3. Step 3: Cross multiply
   489,853x = 749,323.50 × 749,323.50
4. Step 4: Simplify right side
   489,853x = 561,485,707,652.25
5. Step 5: Solve for x
   x = 561,485,707,652.25/489,853
6. Step 6: Final answer
   x = 1,146,233.07