Finding the Third Proportional to 353,205 and 725,179.50

Step by Step Solution

1. Step 1: Write the proportion equation
   353,205 : 725,179.50 = 725,179.50 : x
2. Step 2: Convert to fraction form
   353,205/725,179.50 = 725,179.50/x
3. Step 3: Cross multiply
   353,205x = 725,179.50 × 725,179.50
4. Step 4: Simplify right side
   353,205x = 525,885,307,220.25
5. Step 5: Solve for x
   x = 525,885,307,220.25/353,205
6. Step 6: Final answer
   x = 1,488,895.42