Finding the Third Proportional to 329,360 and 709,528

Step by Step Solution

1. Step 1: Write the proportion equation
   329,360 : 709,528 = 709,528 : x
2. Step 2: Convert to fraction form
   329,360/709,528 = 709,528/x
3. Step 3: Cross multiply
   329,360x = 709,528 × 709,528
4. Step 4: Simplify right side
   329,360x = 503,429,982,784
5. Step 5: Solve for x
   x = 503,429,982,784/329,360
6. Step 6: Final answer
   x = 1,528,509.78