Finding the Third Proportional to 12,406.50 and 26,999.81

Step by Step Solution

1. Step 1: Write the proportion equation
   12,406.50 : 26,999.81 = 26,999.81 : x
2. Step 2: Convert to fraction form
   12,406.50/26,999.81 = 26,999.81/x
3. Step 3: Cross multiply
   12,406.50x = 26,999.81 × 26,999.81
4. Step 4: Simplify right side
   12,406.50x = 728,989,875.04
5. Step 5: Solve for x
   x = 728,989,875.04/12,406.50
6. Step 6: Final answer
   x = 58,758.71