Finding the Third Proportional to 257,810.34 and 555,118.31

Step by Step Solution

1. Step 1: Write the proportion equation
   257,810.34 : 555,118.31 = 555,118.31 : x
2. Step 2: Convert to fraction form
   257,810.34/555,118.31 = 555,118.31/x
3. Step 3: Cross multiply
   257,810.34x = 555,118.31 × 555,118.31
4. Step 4: Simplify right side
   257,810.34x = 308,156,340,872.85
5. Step 5: Solve for x
   x = 308,156,340,872.85/257,810.34
6. Step 6: Final answer
   x = 1,195,283.08