Finding the Third Proportional to 394,298.72 and 590,779.83

Step by Step Solution

1. Step 1: Write the proportion equation
   394,298.72 : 590,779.83 = 590,779.83 : x
2. Step 2: Convert to fraction form
   394,298.72/590,779.83 = 590,779.83/x
3. Step 3: Cross multiply
   394,298.72x = 590,779.83 × 590,779.83
4. Step 4: Simplify right side
   394,298.72x = 349,020,805,319.41
5. Step 5: Solve for x
   x = 349,020,805,319.41/394,298.72
6. Step 6: Final answer
   x = 885,168.50