Finding the Third Proportional to 9,862.17 and 21,395.81

Step by Step Solution

1. Step 1: Write the proportion equation
   9,862.17 : 21,395.81 = 21,395.81 : x
2. Step 2: Convert to fraction form
   9,862.17/21,395.81 = 21,395.81/x
3. Step 3: Cross multiply
   9,862.17x = 21,395.81 × 21,395.81
4. Step 4: Simplify right side
   9,862.17x = 457,780,792.54
5. Step 5: Solve for x
   x = 457,780,792.54/9,862.17
6. Step 6: Final answer
   x = 46,417.85