Finding the Third Proportional to 45,631.50 and 66,870.75

Step by Step Solution

1. Step 1: Write the proportion equation
   45,631.50 : 66,870.75 = 66,870.75 : x
2. Step 2: Convert to fraction form
   45,631.50/66,870.75 = 66,870.75/x
3. Step 3: Cross multiply
   45,631.50x = 66,870.75 × 66,870.75
4. Step 4: Simplify right side
   45,631.50x = 4,471,697,205.56
5. Step 5: Solve for x
   x = 4,471,697,205.56/45,631.50
6. Step 6: Final answer
   x = 97,995.84