Finding the Third Proportional to 353,106 and 724,801.50

Step by Step Solution

1. Step 1: Write the proportion equation
   353,106 : 724,801.50 = 724,801.50 : x
2. Step 2: Convert to fraction form
   353,106/724,801.50 = 724,801.50/x
3. Step 3: Cross multiply
   353,106x = 724,801.50 × 724,801.50
4. Step 4: Simplify right side
   353,106x = 525,337,214,402.25
5. Step 5: Solve for x
   x = 525,337,214,402.25/353,106
6. Step 6: Final answer
   x = 1,487,760.66