Finding the Third Proportional to 4,737,788 and 10,420,072

Step by Step Solution

1. Step 1: Write the proportion equation
   4,737,788 : 10,420,072 = 10,420,072 : x
2. Step 2: Convert to fraction form
   4,737,788/10,420,072 = 10,420,072/x
3. Step 3: Cross multiply
   4,737,788x = 10,420,072 × 10,420,072
4. Step 4: Simplify right side
   4,737,788x = 108,577,900,485,184
5. Step 5: Solve for x
   x = 108,577,900,485,184/4,737,788
6. Step 6: Final answer
   x = 22,917,424.86