Finding the Third Proportional to 377,105.25 and 813,219.50

Step by Step Solution

1. Step 1: Write the proportion equation
   377,105.25 : 813,219.50 = 813,219.50 : x
2. Step 2: Convert to fraction form
   377,105.25/813,219.50 = 813,219.50/x
3. Step 3: Cross multiply
   377,105.25x = 813,219.50 × 813,219.50
4. Step 4: Simplify right side
   377,105.25x = 661,325,955,180.25
5. Step 5: Solve for x
   x = 661,325,955,180.25/377,105.25
6. Step 6: Final answer
   x = 1,753,690.66