Finding the Third Proportional to 398,783.25 and 875,061

Step by Step Solution

1. Step 1: Write the proportion equation
   398,783.25 : 875,061 = 875,061 : x
2. Step 2: Convert to fraction form
   398,783.25/875,061 = 875,061/x
3. Step 3: Cross multiply
   398,783.25x = 875,061 × 875,061
4. Step 4: Simplify right side
   398,783.25x = 765,731,753,721
5. Step 5: Solve for x
   x = 765,731,753,721/398,783.25
6. Step 6: Final answer
   x = 1,920,170.30