Finding the Third Proportional to 329,911.50 and 706,479

Step by Step Solution

1. Step 1: Write the proportion equation
   329,911.50 : 706,479 = 706,479 : x
2. Step 2: Convert to fraction form
   329,911.50/706,479 = 706,479/x
3. Step 3: Cross multiply
   329,911.50x = 706,479 × 706,479
4. Step 4: Simplify right side
   329,911.50x = 499,112,577,441
5. Step 5: Solve for x
   x = 499,112,577,441/329,911.50
6. Step 6: Final answer
   x = 1,512,868.08