Finding the Third Proportional to 45,051.75 and 57,019.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,051.75 : 57,019.50 = 57,019.50 : x
2. Step 2: Convert to fraction form
   45,051.75/57,019.50 = 57,019.50/x
3. Step 3: Cross multiply
   45,051.75x = 57,019.50 × 57,019.50
4. Step 4: Simplify right side
   45,051.75x = 3,251,223,380.25
5. Step 5: Solve for x
   x = 3,251,223,380.25/45,051.75
6. Step 6: Final answer
   x = 72,166.42