Finding the Third Proportional to 336,109.50 and 738,666

Step by Step Solution

1. Step 1: Write the proportion equation
   336,109.50 : 738,666 = 738,666 : x
2. Step 2: Convert to fraction form
   336,109.50/738,666 = 738,666/x
3. Step 3: Cross multiply
   336,109.50x = 738,666 × 738,666
4. Step 4: Simplify right side
   336,109.50x = 545,627,459,556
5. Step 5: Solve for x
   x = 545,627,459,556/336,109.50
6. Step 6: Final answer
   x = 1,623,362.21