Finding the Third Proportional to 9,274.34 and 21,871.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,274.34 : 21,871.10 = 21,871.10 : x
2. Step 2: Convert to fraction form
   9,274.34/21,871.10 = 21,871.10/x
3. Step 3: Cross multiply
   9,274.34x = 21,871.10 × 21,871.10
4. Step 4: Simplify right side
   9,274.34x = 478,345,083.56
5. Step 5: Solve for x
   x = 478,345,083.56/9,274.34
6. Step 6: Final answer
   x = 51,577.29