Finding the Third Proportional to 9,938,292 and 21,293,766

Step by Step Solution

1. Step 1: Write the proportion equation
   9,938,292 : 21,293,766 = 21,293,766 : x
2. Step 2: Convert to fraction form
   9,938,292/21,293,766 = 21,293,766/x
3. Step 3: Cross multiply
   9,938,292x = 21,293,766 × 21,293,766
4. Step 4: Simplify right side
   9,938,292x = 453,424,470,462,756
5. Step 5: Solve for x
   x = 453,424,470,462,756/9,938,292
6. Step 6: Final answer
   x = 45,623,983.52