Finding the Third Proportional to 20,056.50 and 42,798

Step by Step Solution

1. Step 1: Write the proportion equation
   20,056.50 : 42,798 = 42,798 : x
2. Step 2: Convert to fraction form
   20,056.50/42,798 = 42,798/x
3. Step 3: Cross multiply
   20,056.50x = 42,798 × 42,798
4. Step 4: Simplify right side
   20,056.50x = 1,831,668,804
5. Step 5: Solve for x
   x = 1,831,668,804/20,056.50
6. Step 6: Final answer
   x = 91,325.45