Finding the Third Proportional to 7,208,980 and 10,078,638

Step by Step Solution

1. Step 1: Write the proportion equation
   7,208,980 : 10,078,638 = 10,078,638 : x
2. Step 2: Convert to fraction form
   7,208,980/10,078,638 = 10,078,638/x
3. Step 3: Cross multiply
   7,208,980x = 10,078,638 × 10,078,638
4. Step 4: Simplify right side
   7,208,980x = 101,578,943,935,044
5. Step 5: Solve for x
   x = 101,578,943,935,044/7,208,980
6. Step 6: Final answer
   x = 14,090,612.53