Finding the Third Proportional to 42,222 and 65,457

Step by Step Solution

1. Step 1: Write the proportion equation
   42,222 : 65,457 = 65,457 : x
2. Step 2: Convert to fraction form
   42,222/65,457 = 65,457/x
3. Step 3: Cross multiply
   42,222x = 65,457 × 65,457
4. Step 4: Simplify right side
   42,222x = 4,284,618,849
5. Step 5: Solve for x
   x = 4,284,618,849/42,222
6. Step 6: Final answer
   x = 101,478.35