Finding the Third Proportional to 216,085.50 and 235,461

Step by Step Solution

1. Step 1: Write the proportion equation
   216,085.50 : 235,461 = 235,461 : x
2. Step 2: Convert to fraction form
   216,085.50/235,461 = 235,461/x
3. Step 3: Cross multiply
   216,085.50x = 235,461 × 235,461
4. Step 4: Simplify right side
   216,085.50x = 55,441,882,521
5. Step 5: Solve for x
   x = 55,441,882,521/216,085.50
6. Step 6: Final answer
   x = 256,573.82