Finding the Third Proportional to 302,479.13 and 658,300.31

Step by Step Solution

1. Step 1: Write the proportion equation
   302,479.13 : 658,300.31 = 658,300.31 : x
2. Step 2: Convert to fraction form
   302,479.13/658,300.31 = 658,300.31/x
3. Step 3: Cross multiply
   302,479.13x = 658,300.31 × 658,300.31
4. Step 4: Simplify right side
   302,479.13x = 433,359,301,437.60
5. Step 5: Solve for x
   x = 433,359,301,437.60/302,479.13
6. Step 6: Final answer
   x = 1,432,691.60