Finding the Third Proportional to 336,604.50 and 725,697

Step by Step Solution

1. Step 1: Write the proportion equation
   336,604.50 : 725,697 = 725,697 : x
2. Step 2: Convert to fraction form
   336,604.50/725,697 = 725,697/x
3. Step 3: Cross multiply
   336,604.50x = 725,697 × 725,697
4. Step 4: Simplify right side
   336,604.50x = 526,636,135,809
5. Step 5: Solve for x
   x = 526,636,135,809/336,604.50
6. Step 6: Final answer
   x = 1,564,554.65