Finding the Third Proportional to 21,638,664 and 45,691,776

Step by Step Solution

1. Step 1: Write the proportion equation
   21,638,664 : 45,691,776 = 45,691,776 : x
2. Step 2: Convert to fraction form
   21,638,664/45,691,776 = 45,691,776/x
3. Step 3: Cross multiply
   21,638,664x = 45,691,776 × 45,691,776
4. Step 4: Simplify right side
   21,638,664x = 2,087,738,394,034,176
5. Step 5: Solve for x
   x = 2,087,738,394,034,176/21,638,664
6. Step 6: Final answer
   x = 96,481,852.76