Finding the Third Proportional to 573,399 and 801,994.50

Step by Step Solution

1. Step 1: Write the proportion equation
   573,399 : 801,994.50 = 801,994.50 : x
2. Step 2: Convert to fraction form
   573,399/801,994.50 = 801,994.50/x
3. Step 3: Cross multiply
   573,399x = 801,994.50 × 801,994.50
4. Step 4: Simplify right side
   573,399x = 643,195,178,030.25
5. Step 5: Solve for x
   x = 643,195,178,030.25/573,399
6. Step 6: Final answer
   x = 1,121,723.58