Finding the Third Proportional to 329,483.50 and 719,383.50

Step by Step Solution

1. Step 1: Write the proportion equation
   329,483.50 : 719,383.50 = 719,383.50 : x
2. Step 2: Convert to fraction form
   329,483.50/719,383.50 = 719,383.50/x
3. Step 3: Cross multiply
   329,483.50x = 719,383.50 × 719,383.50
4. Step 4: Simplify right side
   329,483.50x = 517,512,620,072.25
5. Step 5: Solve for x
   x = 517,512,620,072.25/329,483.50
6. Step 6: Final answer
   x = 1,570,678.41