Finding the Third Proportional to 28,251.75 and 42,438.75

Step by Step Solution

1. Step 1: Write the proportion equation
   28,251.75 : 42,438.75 = 42,438.75 : x
2. Step 2: Convert to fraction form
   28,251.75/42,438.75 = 42,438.75/x
3. Step 3: Cross multiply
   28,251.75x = 42,438.75 × 42,438.75
4. Step 4: Simplify right side
   28,251.75x = 1,801,047,501.56
5. Step 5: Solve for x
   x = 1,801,047,501.56/28,251.75
6. Step 6: Final answer
   x = 63,749.94