Finding the Third Proportional to 11,872 and 28,026.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,872 : 28,026.50 = 28,026.50 : x
2. Step 2: Convert to fraction form
   11,872/28,026.50 = 28,026.50/x
3. Step 3: Cross multiply
   11,872x = 28,026.50 × 28,026.50
4. Step 4: Simplify right side
   11,872x = 785,484,702.25
5. Step 5: Solve for x
   x = 785,484,702.25/11,872
6. Step 6: Final answer
   x = 66,162.80