Finding the Third Proportional to 400,245.75 and 875,152.50

Step by Step Solution

1. Step 1: Write the proportion equation
   400,245.75 : 875,152.50 = 875,152.50 : x
2. Step 2: Convert to fraction form
   400,245.75/875,152.50 = 875,152.50/x
3. Step 3: Cross multiply
   400,245.75x = 875,152.50 × 875,152.50
4. Step 4: Simplify right side
   400,245.75x = 765,891,898,256.25
5. Step 5: Solve for x
   x = 765,891,898,256.25/400,245.75
6. Step 6: Final answer
   x = 1,913,554.11