Finding the Third Proportional to 21,315 and 34,051.50

Step by Step Solution

1. Step 1: Write the proportion equation
   21,315 : 34,051.50 = 34,051.50 : x
2. Step 2: Convert to fraction form
   21,315/34,051.50 = 34,051.50/x
3. Step 3: Cross multiply
   21,315x = 34,051.50 × 34,051.50
4. Step 4: Simplify right side
   21,315x = 1,159,504,652.25
5. Step 5: Solve for x
   x = 1,159,504,652.25/21,315
6. Step 6: Final answer
   x = 54,398.53