Finding the Third Proportional to 321,089.63 and 500,018.06

Step by Step Solution

1. Step 1: Write the proportion equation
   321,089.63 : 500,018.06 = 500,018.06 : x
2. Step 2: Convert to fraction form
   321,089.63/500,018.06 = 500,018.06/x
3. Step 3: Cross multiply
   321,089.63x = 500,018.06 × 500,018.06
4. Step 4: Simplify right side
   321,089.63x = 250,018,062,826.25
5. Step 5: Solve for x
   x = 250,018,062,826.25/321,089.63
6. Step 6: Final answer
   x = 778,655.07