Finding the Third Proportional to 398,819.00 and 875,128.43

Step by Step Solution

1. Step 1: Write the proportion equation
   398,819.00 : 875,128.43 = 875,128.43 : x
2. Step 2: Convert to fraction form
   398,819.00/875,128.43 = 875,128.43/x
3. Step 3: Cross multiply
   398,819.00x = 875,128.43 × 875,128.43
4. Step 4: Simplify right side
   398,819.00x = 765,849,768,447.31
5. Step 5: Solve for x
   x = 765,849,768,447.31/398,819.00
6. Step 6: Final answer
   x = 1,920,294.07