Finding the Third Proportional to 32,121.56 and 68,981.63

Step by Step Solution

1. Step 1: Write the proportion equation
   32,121.56 : 68,981.63 = 68,981.63 : x
2. Step 2: Convert to fraction form
   32,121.56/68,981.63 = 68,981.63/x
3. Step 3: Cross multiply
   32,121.56x = 68,981.63 × 68,981.63
4. Step 4: Simplify right side
   32,121.56x = 4,758,464,587.64
5. Step 5: Solve for x
   x = 4,758,464,587.64/32,121.56
6. Step 6: Final answer
   x = 148,139.26