Finding the Third Proportional to 374,810 and 819,520.50

Step by Step Solution

1. Step 1: Write the proportion equation
   374,810 : 819,520.50 = 819,520.50 : x
2. Step 2: Convert to fraction form
   374,810/819,520.50 = 819,520.50/x
3. Step 3: Cross multiply
   374,810x = 819,520.50 × 819,520.50
4. Step 4: Simplify right side
   374,810x = 671,613,849,920.25
5. Step 5: Solve for x
   x = 671,613,849,920.25/374,810
6. Step 6: Final answer
   x = 1,791,878.15