Finding the Third Proportional to 173,340 and 266,064.75

Step by Step Solution

1. Step 1: Write the proportion equation
   173,340 : 266,064.75 = 266,064.75 : x
2. Step 2: Convert to fraction form
   173,340/266,064.75 = 266,064.75/x
3. Step 3: Cross multiply
   173,340x = 266,064.75 × 266,064.75
4. Step 4: Simplify right side
   173,340x = 70,790,451,192.56
5. Step 5: Solve for x
   x = 70,790,451,192.56/173,340
6. Step 6: Final answer
   x = 408,390.74