Finding the Third Proportional to 45,211.50 and 68,870.25

Step by Step Solution

1. Step 1: Write the proportion equation
   45,211.50 : 68,870.25 = 68,870.25 : x
2. Step 2: Convert to fraction form
   45,211.50/68,870.25 = 68,870.25/x
3. Step 3: Cross multiply
   45,211.50x = 68,870.25 × 68,870.25
4. Step 4: Simplify right side
   45,211.50x = 4,743,111,335.06
5. Step 5: Solve for x
   x = 4,743,111,335.06/45,211.50
6. Step 6: Final answer
   x = 104,909.40