Finding the Third Proportional to 4,061,886 and 8,920,902

Step by Step Solution

1. Step 1: Write the proportion equation
   4,061,886 : 8,920,902 = 8,920,902 : x
2. Step 2: Convert to fraction form
   4,061,886/8,920,902 = 8,920,902/x
3. Step 3: Cross multiply
   4,061,886x = 8,920,902 × 8,920,902
4. Step 4: Simplify right side
   4,061,886x = 79,582,492,493,604
5. Step 5: Solve for x
   x = 79,582,492,493,604/4,061,886
6. Step 6: Final answer
   x = 19,592,497.79