Finding the Third Proportional to 42,788.25 and 56,787.75

Step by Step Solution

1. Step 1: Write the proportion equation
   42,788.25 : 56,787.75 = 56,787.75 : x
2. Step 2: Convert to fraction form
   42,788.25/56,787.75 = 56,787.75/x
3. Step 3: Cross multiply
   42,788.25x = 56,787.75 × 56,787.75
4. Step 4: Simplify right side
   42,788.25x = 3,224,848,550.06
5. Step 5: Solve for x
   x = 3,224,848,550.06/42,788.25
6. Step 6: Final answer
   x = 75,367.62