Finding the Third Proportional to 10,088 and 21,389.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,088 : 21,389.50 = 21,389.50 : x
2. Step 2: Convert to fraction form
   10,088/21,389.50 = 21,389.50/x
3. Step 3: Cross multiply
   10,088x = 21,389.50 × 21,389.50
4. Step 4: Simplify right side
   10,088x = 457,510,710.25
5. Step 5: Solve for x
   x = 457,510,710.25/10,088
6. Step 6: Final answer
   x = 45,351.97