Finding the Third Proportional to 20,076.75 and 42,931.50

Step by Step Solution

1. Step 1: Write the proportion equation
   20,076.75 : 42,931.50 = 42,931.50 : x
2. Step 2: Convert to fraction form
   20,076.75/42,931.50 = 42,931.50/x
3. Step 3: Cross multiply
   20,076.75x = 42,931.50 × 42,931.50
4. Step 4: Simplify right side
   20,076.75x = 1,843,113,692.25
5. Step 5: Solve for x
   x = 1,843,113,692.25/20,076.75
6. Step 6: Final answer
   x = 91,803.39