Finding the Third Proportional to 32,320 and 70,480

Step by Step Solution

1. Step 1: Write the proportion equation
   32,320 : 70,480 = 70,480 : x
2. Step 2: Convert to fraction form
   32,320/70,480 = 70,480/x
3. Step 3: Cross multiply
   32,320x = 70,480 × 70,480
4. Step 4: Simplify right side
   32,320x = 4,967,430,400
5. Step 5: Solve for x
   x = 4,967,430,400/32,320
6. Step 6: Final answer
   x = 153,695.25