Finding the Third Proportional to 11,726,658 and 17,938,731

Step by Step Solution

1. Step 1: Write the proportion equation
   11,726,658 : 17,938,731 = 17,938,731 : x
2. Step 2: Convert to fraction form
   11,726,658/17,938,731 = 17,938,731/x
3. Step 3: Cross multiply
   11,726,658x = 17,938,731 × 17,938,731
4. Step 4: Simplify right side
   11,726,658x = 321,798,069,890,361
5. Step 5: Solve for x
   x = 321,798,069,890,361/11,726,658
6. Step 6: Final answer
   x = 27,441,583.94