Finding the Third Proportional to 100,870.50 and 217,302

Step by Step Solution

1. Step 1: Write the proportion equation
   100,870.50 : 217,302 = 217,302 : x
2. Step 2: Convert to fraction form
   100,870.50/217,302 = 217,302/x
3. Step 3: Cross multiply
   100,870.50x = 217,302 × 217,302
4. Step 4: Simplify right side
   100,870.50x = 47,220,159,204
5. Step 5: Solve for x
   x = 47,220,159,204/100,870.50
6. Step 6: Final answer
   x = 468,126.55