Finding the Third Proportional to 53,005.50 and 108,436.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,005.50 : 108,436.50 = 108,436.50 : x
2. Step 2: Convert to fraction form
   53,005.50/108,436.50 = 108,436.50/x
3. Step 3: Cross multiply
   53,005.50x = 108,436.50 × 108,436.50
4. Step 4: Simplify right side
   53,005.50x = 11,758,474,532.25
5. Step 5: Solve for x
   x = 11,758,474,532.25/53,005.50
6. Step 6: Final answer
   x = 221,834.99