Finding the Third Proportional to 42,356 and 64,422

Step by Step Solution

1. Step 1: Write the proportion equation
   42,356 : 64,422 = 64,422 : x
2. Step 2: Convert to fraction form
   42,356/64,422 = 64,422/x
3. Step 3: Cross multiply
   42,356x = 64,422 × 64,422
4. Step 4: Simplify right side
   42,356x = 4,150,194,084
5. Step 5: Solve for x
   x = 4,150,194,084/42,356
6. Step 6: Final answer
   x = 97,983.62