Finding the Third Proportional to 21,128.77 and 32,904.35

Step by Step Solution

1. Step 1: Write the proportion equation
   21,128.77 : 32,904.35 = 32,904.35 : x
2. Step 2: Convert to fraction form
   21,128.77/32,904.35 = 32,904.35/x
3. Step 3: Cross multiply
   21,128.77x = 32,904.35 × 32,904.35
4. Step 4: Simplify right side
   21,128.77x = 1,082,696,351.75
5. Step 5: Solve for x
   x = 1,082,696,351.75/21,128.77
6. Step 6: Final answer
   x = 51,242.76