Finding the Third Proportional to 489,849 and 742,156.50

Step by Step Solution

1. Step 1: Write the proportion equation
   489,849 : 742,156.50 = 742,156.50 : x
2. Step 2: Convert to fraction form
   489,849/742,156.50 = 742,156.50/x
3. Step 3: Cross multiply
   489,849x = 742,156.50 × 742,156.50
4. Step 4: Simplify right side
   489,849x = 550,796,270,492.25
5. Step 5: Solve for x
   x = 550,796,270,492.25/489,849
6. Step 6: Final answer
   x = 1,124,420.53