Finding the Third Proportional to 21,789 and 34,630.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,789 : 34,630.50 = 34,630.50 : x
2. Step 2: Convert to fraction form
   21,789/34,630.50 = 34,630.50/x
3. Step 3: Cross multiply
   21,789x = 34,630.50 × 34,630.50
4. Step 4: Simplify right side
   21,789x = 1,199,271,530.25
5. Step 5: Solve for x
   x = 1,199,271,530.25/21,789
6. Step 6: Final answer
   x = 55,040.23