Finding the Third Proportional to 73,722.38 and 173,302.88

Step by Step Solution

1. Step 1: Write the proportion equation
   73,722.38 : 173,302.88 = 173,302.88 : x
2. Step 2: Convert to fraction form
   73,722.38/173,302.88 = 173,302.88/x
3. Step 3: Cross multiply
   73,722.38x = 173,302.88 × 173,302.88
4. Step 4: Simplify right side
   73,722.38x = 30,033,886,483.27
5. Step 5: Solve for x
   x = 30,033,886,483.27/73,722.38
6. Step 6: Final answer
   x = 407,391.74