Finding the Third Proportional to 329,520 and 719,181.75

Step by Step Solution

1. Step 1: Write the proportion equation
   329,520 : 719,181.75 = 719,181.75 : x
2. Step 2: Convert to fraction form
   329,520/719,181.75 = 719,181.75/x
3. Step 3: Cross multiply
   329,520x = 719,181.75 × 719,181.75
4. Step 4: Simplify right side
   329,520x = 517,222,389,533.06
5. Step 5: Solve for x
   x = 517,222,389,533.06/329,520
6. Step 6: Final answer
   x = 1,569,623.66