Finding the Third Proportional to 21,423 and 45,843

Step by Step Solution

1. Step 1: Write the proportion equation
   21,423 : 45,843 = 45,843 : x
2. Step 2: Convert to fraction form
   21,423/45,843 = 45,843/x
3. Step 3: Cross multiply
   21,423x = 45,843 × 45,843
4. Step 4: Simplify right side
   21,423x = 2,101,580,649
5. Step 5: Solve for x
   x = 2,101,580,649/21,423
6. Step 6: Final answer
   x = 98,099.27