Finding the Third Proportional to 329,728.50 and 706,113

Step by Step Solution

1. Step 1: Write the proportion equation
   329,728.50 : 706,113 = 706,113 : x
2. Step 2: Convert to fraction form
   329,728.50/706,113 = 706,113/x
3. Step 3: Cross multiply
   329,728.50x = 706,113 × 706,113
4. Step 4: Simplify right side
   329,728.50x = 498,595,568,769
5. Step 5: Solve for x
   x = 498,595,568,769/329,728.50
6. Step 6: Final answer
   x = 1,512,139.74