Finding the Third Proportional to 21,638,590 and 45,691,634

Step by Step Solution

1. Step 1: Write the proportion equation
   21,638,590 : 45,691,634 = 45,691,634 : x
2. Step 2: Convert to fraction form
   21,638,590/45,691,634 = 45,691,634/x
3. Step 3: Cross multiply
   21,638,590x = 45,691,634 × 45,691,634
4. Step 4: Simplify right side
   21,638,590x = 2,087,725,417,589,956
5. Step 5: Solve for x
   x = 2,087,725,417,589,956/21,638,590
6. Step 6: Final answer
   x = 96,481,583.02