Finding the Third Proportional to 398,796 and 875,110.50

Step by Step Solution

1. Step 1: Write the proportion equation
   398,796 : 875,110.50 = 875,110.50 : x
2. Step 2: Convert to fraction form
   398,796/875,110.50 = 875,110.50/x
3. Step 3: Cross multiply
   398,796x = 875,110.50 × 875,110.50
4. Step 4: Simplify right side
   398,796x = 765,818,387,210.25
5. Step 5: Solve for x
   x = 765,818,387,210.25/398,796
6. Step 6: Final answer
   x = 1,920,326.15