Finding the Third Proportional to 9,991.50 and 14,790

Step by Step Solution

1. Step 1: Write the proportion equation
   9,991.50 : 14,790 = 14,790 : x
2. Step 2: Convert to fraction form
   9,991.50/14,790 = 14,790/x
3. Step 3: Cross multiply
   9,991.50x = 14,790 × 14,790
4. Step 4: Simplify right side
   9,991.50x = 218,744,100
5. Step 5: Solve for x
   x = 218,744,100/9,991.50
6. Step 6: Final answer
   x = 21,893.02