Finding the Third Proportional to 787.50 and 1,141.25

Step by Step Solution

1. Step 1: Write the proportion equation
   787.50 : 1,141.25 = 1,141.25 : x
2. Step 2: Convert to fraction form
   787.50/1,141.25 = 1,141.25/x
3. Step 3: Cross multiply
   787.50x = 1,141.25 × 1,141.25
4. Step 4: Simplify right side
   787.50x = 1,302,451.56
5. Step 5: Solve for x
   x = 1,302,451.56/787.50
6. Step 6: Final answer
   x = 1,653.91