Finding the Third Proportional to 490,719.50 and 738,536

Step by Step Solution

1. Step 1: Write the proportion equation
   490,719.50 : 738,536 = 738,536 : x
2. Step 2: Convert to fraction form
   490,719.50/738,536 = 738,536/x
3. Step 3: Cross multiply
   490,719.50x = 738,536 × 738,536
4. Step 4: Simplify right side
   490,719.50x = 545,435,423,296
5. Step 5: Solve for x
   x = 545,435,423,296/490,719.50
6. Step 6: Final answer
   x = 1,111,501.42