Finding the Third Proportional to 336,454 and 738,300

Step by Step Solution

1. Step 1: Write the proportion equation
   336,454 : 738,300 = 738,300 : x
2. Step 2: Convert to fraction form
   336,454/738,300 = 738,300/x
3. Step 3: Cross multiply
   336,454x = 738,300 × 738,300
4. Step 4: Simplify right side
   336,454x = 545,086,890,000
5. Step 5: Solve for x
   x = 545,086,890,000/336,454
6. Step 6: Final answer
   x = 1,620,093.36