Finding the Third Proportional to 191.25 and 412.50

Step by Step Solution

1. Step 1: Write the proportion equation
   191.25 : 412.50 = 412.50 : x
2. Step 2: Convert to fraction form
   191.25/412.50 = 412.50/x
3. Step 3: Cross multiply
   191.25x = 412.50 × 412.50
4. Step 4: Simplify right side
   191.25x = 170,156.25
5. Step 5: Solve for x
   x = 170,156.25/191.25
6. Step 6: Final answer
   x = 889.71