Finding the Third Proportional to 12,312.75 and 26,377.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,312.75 : 26,377.50 = 26,377.50 : x
2. Step 2: Convert to fraction form
   12,312.75/26,377.50 = 26,377.50/x
3. Step 3: Cross multiply
   12,312.75x = 26,377.50 × 26,377.50
4. Step 4: Simplify right side
   12,312.75x = 695,772,506.25
5. Step 5: Solve for x
   x = 695,772,506.25/12,312.75
6. Step 6: Final answer
   x = 56,508.29