Finding the Third Proportional to 151,784 and 329,811.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,784 : 329,811.50 = 329,811.50 : x
2. Step 2: Convert to fraction form
   151,784/329,811.50 = 329,811.50/x
3. Step 3: Cross multiply
   151,784x = 329,811.50 × 329,811.50
4. Step 4: Simplify right side
   151,784x = 108,775,625,532.25
5. Step 5: Solve for x
   x = 108,775,625,532.25/151,784
6. Step 6: Final answer
   x = 716,647.51