Finding the Third Proportional to 31,136 and 45,372

Step by Step Solution

1. Step 1: Write the proportion equation
   31,136 : 45,372 = 45,372 : x
2. Step 2: Convert to fraction form
   31,136/45,372 = 45,372/x
3. Step 3: Cross multiply
   31,136x = 45,372 × 45,372
4. Step 4: Simplify right side
   31,136x = 2,058,618,384
5. Step 5: Solve for x
   x = 2,058,618,384/31,136
6. Step 6: Final answer
   x = 66,116.98