Finding the Third Proportional to 807.50 and 887.50

Step by Step Solution

1. Step 1: Write the proportion equation
   807.50 : 887.50 = 887.50 : x
2. Step 2: Convert to fraction form
   807.50/887.50 = 887.50/x
3. Step 3: Cross multiply
   807.50x = 887.50 × 887.50
4. Step 4: Simplify right side
   807.50x = 787,656.25
5. Step 5: Solve for x
   x = 787,656.25/807.50
6. Step 6: Final answer
   x = 975.43