Finding the Third Proportional to 45,485 and 69,145.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,485 : 69,145.50 = 69,145.50 : x
2. Step 2: Convert to fraction form
   45,485/69,145.50 = 69,145.50/x
3. Step 3: Cross multiply
   45,485x = 69,145.50 × 69,145.50
4. Step 4: Simplify right side
   45,485x = 4,781,100,170.25
5. Step 5: Solve for x
   x = 4,781,100,170.25/45,485
6. Step 6: Final answer
   x = 105,113.78