Finding the Third Proportional to 40,783 and 54,886.50

Step by Step Solution

1. Step 1: Write the proportion equation
   40,783 : 54,886.50 = 54,886.50 : x
2. Step 2: Convert to fraction form
   40,783/54,886.50 = 54,886.50/x
3. Step 3: Cross multiply
   40,783x = 54,886.50 × 54,886.50
4. Step 4: Simplify right side
   40,783x = 3,012,527,882.25
5. Step 5: Solve for x
   x = 3,012,527,882.25/40,783
6. Step 6: Final answer
   x = 73,867.25