Finding the Third Proportional to 398,196 and 875,124

Step by Step Solution

1. Step 1: Write the proportion equation
   398,196 : 875,124 = 875,124 : x
2. Step 2: Convert to fraction form
   398,196/875,124 = 875,124/x
3. Step 3: Cross multiply
   398,196x = 875,124 × 875,124
4. Step 4: Simplify right side
   398,196x = 765,842,015,376
5. Step 5: Solve for x
   x = 765,842,015,376/398,196
6. Step 6: Final answer
   x = 1,923,279.03