Finding the Third Proportional to 21,876,436 and 47,689,256

Step by Step Solution

1. Step 1: Write the proportion equation
   21,876,436 : 47,689,256 = 47,689,256 : x
2. Step 2: Convert to fraction form
   21,876,436/47,689,256 = 47,689,256/x
3. Step 3: Cross multiply
   21,876,436x = 47,689,256 × 47,689,256
4. Step 4: Simplify right side
   21,876,436x = 2,274,265,137,833,536
5. Step 5: Solve for x
   x = 2,274,265,137,833,536/21,876,436
6. Step 6: Final answer
   x = 103,959,581.80