Finding the Third Proportional to 21,807 and 34,416

Step by Step Solution

1. Step 1: Write the proportion equation
   21,807 : 34,416 = 34,416 : x
2. Step 2: Convert to fraction form
   21,807/34,416 = 34,416/x
3. Step 3: Cross multiply
   21,807x = 34,416 × 34,416
4. Step 4: Simplify right side
   21,807x = 1,184,461,056
5. Step 5: Solve for x
   x = 1,184,461,056/21,807
6. Step 6: Final answer
   x = 54,315.64