Finding the Third Proportional to 20,160 and 54,774

Step by Step Solution

1. Step 1: Write the proportion equation
   20,160 : 54,774 = 54,774 : x
2. Step 2: Convert to fraction form
   20,160/54,774 = 54,774/x
3. Step 3: Cross multiply
   20,160x = 54,774 × 54,774
4. Step 4: Simplify right side
   20,160x = 3,000,191,076
5. Step 5: Solve for x
   x = 3,000,191,076/20,160
6. Step 6: Final answer
   x = 148,819.00