Finding the Third Proportional to 89,402 and 123,943

Step by Step Solution

1. Step 1: Write the proportion equation
   89,402 : 123,943 = 123,943 : x
2. Step 2: Convert to fraction form
   89,402/123,943 = 123,943/x
3. Step 3: Cross multiply
   89,402x = 123,943 × 123,943
4. Step 4: Simplify right side
   89,402x = 15,361,867,249
5. Step 5: Solve for x
   x = 15,361,867,249/89,402
6. Step 6: Final answer
   x = 171,829.12