Finding the Third Proportional to 151,783 and 329,809.50

Step by Step Solution

1. Step 1: Write the proportion equation
   151,783 : 329,809.50 = 329,809.50 : x
2. Step 2: Convert to fraction form
   151,783/329,809.50 = 329,809.50/x
3. Step 3: Cross multiply
   151,783x = 329,809.50 × 329,809.50
4. Step 4: Simplify right side
   151,783x = 108,774,306,290.25
5. Step 5: Solve for x
   x = 108,774,306,290.25/151,783
6. Step 6: Final answer
   x = 716,643.54