Finding the Third Proportional to 493,390.50 and 738,078

Step by Step Solution

1. Step 1: Write the proportion equation
   493,390.50 : 738,078 = 738,078 : x
2. Step 2: Convert to fraction form
   493,390.50/738,078 = 738,078/x
3. Step 3: Cross multiply
   493,390.50x = 738,078 × 738,078
4. Step 4: Simplify right side
   493,390.50x = 544,759,134,084
5. Step 5: Solve for x
   x = 544,759,134,084/493,390.50
6. Step 6: Final answer
   x = 1,104,113.55