Finding the Third Proportional to 376,987.50 and 813,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   376,987.50 : 813,019.50 = 813,019.50 : x
2. Step 2: Convert to fraction form
   376,987.50/813,019.50 = 813,019.50/x
3. Step 3: Cross multiply
   376,987.50x = 813,019.50 × 813,019.50
4. Step 4: Simplify right side
   376,987.50x = 661,000,707,380.25
5. Step 5: Solve for x
   x = 661,000,707,380.25/376,987.50
6. Step 6: Final answer
   x = 1,753,375.66