Finding the Third Proportional to 21,012 and 45,696

Step by Step Solution

1. Step 1: Write the proportion equation
   21,012 : 45,696 = 45,696 : x
2. Step 2: Convert to fraction form
   21,012/45,696 = 45,696/x
3. Step 3: Cross multiply
   21,012x = 45,696 × 45,696
4. Step 4: Simplify right side
   21,012x = 2,088,124,416
5. Step 5: Solve for x
   x = 2,088,124,416/21,012
6. Step 6: Final answer
   x = 99,377.71