Finding the Third Proportional to 12,787.50 and 19,627

Step by Step Solution

1. Step 1: Write the proportion equation
   12,787.50 : 19,627 = 19,627 : x
2. Step 2: Convert to fraction form
   12,787.50/19,627 = 19,627/x
3. Step 3: Cross multiply
   12,787.50x = 19,627 × 19,627
4. Step 4: Simplify right side
   12,787.50x = 385,219,129
5. Step 5: Solve for x
   x = 385,219,129/12,787.50
6. Step 6: Final answer
   x = 30,124.66