Finding the Third Proportional to 34,639.50 and 74,459.25

Step by Step Solution

1. Step 1: Write the proportion equation
   34,639.50 : 74,459.25 = 74,459.25 : x
2. Step 2: Convert to fraction form
   34,639.50/74,459.25 = 74,459.25/x
3. Step 3: Cross multiply
   34,639.50x = 74,459.25 × 74,459.25
4. Step 4: Simplify right side
   34,639.50x = 5,544,179,910.56
5. Step 5: Solve for x
   x = 5,544,179,910.56/34,639.50
6. Step 6: Final answer
   x = 160,053.69