Finding the Third Proportional to 53,397 and 72,406

Step by Step Solution

1. Step 1: Write the proportion equation
   53,397 : 72,406 = 72,406 : x
2. Step 2: Convert to fraction form
   53,397/72,406 = 72,406/x
3. Step 3: Cross multiply
   53,397x = 72,406 × 72,406
4. Step 4: Simplify right side
   53,397x = 5,242,628,836
5. Step 5: Solve for x
   x = 5,242,628,836/53,397
6. Step 6: Final answer
   x = 98,182.09