Finding the Third Proportional to 518,403 and 741,316.50

Step by Step Solution

1. Step 1: Write the proportion equation
   518,403 : 741,316.50 = 741,316.50 : x
2. Step 2: Convert to fraction form
   518,403/741,316.50 = 741,316.50/x
3. Step 3: Cross multiply
   518,403x = 741,316.50 × 741,316.50
4. Step 4: Simplify right side
   518,403x = 549,550,153,172.25
5. Step 5: Solve for x
   x = 549,550,153,172.25/518,403
6. Step 6: Final answer
   x = 1,060,082.90