Finding the Third Proportional to 269,932.50 and 579,139.88

Step by Step Solution

1. Step 1: Write the proportion equation
   269,932.50 : 579,139.88 = 579,139.88 : x
2. Step 2: Convert to fraction form
   269,932.50/579,139.88 = 579,139.88/x
3. Step 3: Cross multiply
   269,932.50x = 579,139.88 × 579,139.88
4. Step 4: Simplify right side
   269,932.50x = 335,402,994,815.02
5. Step 5: Solve for x
   x = 335,402,994,815.02/269,932.50
6. Step 6: Final answer
   x = 1,242,543.95