Finding the Third Proportional to 69,459 and 103,729.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,459 : 103,729.50 = 103,729.50 : x
2. Step 2: Convert to fraction form
   69,459/103,729.50 = 103,729.50/x
3. Step 3: Cross multiply
   69,459x = 103,729.50 × 103,729.50
4. Step 4: Simplify right side
   69,459x = 10,759,809,170.25
5. Step 5: Solve for x
   x = 10,759,809,170.25/69,459
6. Step 6: Final answer
   x = 154,908.78