Finding the Third Proportional to 43,623 and 69,187.50

Step by Step Solution

1. Step 1: Write the proportion equation
   43,623 : 69,187.50 = 69,187.50 : x
2. Step 2: Convert to fraction form
   43,623/69,187.50 = 69,187.50/x
3. Step 3: Cross multiply
   43,623x = 69,187.50 × 69,187.50
4. Step 4: Simplify right side
   43,623x = 4,786,910,156.25
5. Step 5: Solve for x
   x = 4,786,910,156.25/43,623
6. Step 6: Final answer
   x = 109,733.63