Finding the Third Proportional to 489,768 and 742,045.50

Step by Step Solution

1. Step 1: Write the proportion equation
   489,768 : 742,045.50 = 742,045.50 : x
2. Step 2: Convert to fraction form
   489,768/742,045.50 = 742,045.50/x
3. Step 3: Cross multiply
   489,768x = 742,045.50 × 742,045.50
4. Step 4: Simplify right side
   489,768x = 550,631,524,070.25
5. Step 5: Solve for x
   x = 550,631,524,070.25/489,768
6. Step 6: Final answer
   x = 1,124,270.11