Finding the Third Proportional to 321,030 and 497,776.50

Step by Step Solution

1. Step 1: Write the proportion equation
   321,030 : 497,776.50 = 497,776.50 : x
2. Step 2: Convert to fraction form
   321,030/497,776.50 = 497,776.50/x
3. Step 3: Cross multiply
   321,030x = 497,776.50 × 497,776.50
4. Step 4: Simplify right side
   321,030x = 247,781,443,952.25
5. Step 5: Solve for x
   x = 247,781,443,952.25/321,030
6. Step 6: Final answer
   x = 771,832.68