Finding the Third Proportional to 32,916 and 72,390

Step by Step Solution

1. Step 1: Write the proportion equation
   32,916 : 72,390 = 72,390 : x
2. Step 2: Convert to fraction form
   32,916/72,390 = 72,390/x
3. Step 3: Cross multiply
   32,916x = 72,390 × 72,390
4. Step 4: Simplify right side
   32,916x = 5,240,312,100
5. Step 5: Solve for x
   x = 5,240,312,100/32,916
6. Step 6: Final answer
   x = 159,202.58