Finding the Third Proportional to 400,562.72 and 535,080.30

Step by Step Solution

1. Step 1: Write the proportion equation
   400,562.72 : 535,080.30 = 535,080.30 : x
2. Step 2: Convert to fraction form
   400,562.72/535,080.30 = 535,080.30/x
3. Step 3: Cross multiply
   400,562.72x = 535,080.30 × 535,080.30
4. Step 4: Simplify right side
   400,562.72x = 286,310,932,464.47
5. Step 5: Solve for x
   x = 286,310,932,464.47/400,562.72
6. Step 6: Final answer
   x = 714,771.79