Finding the Third Proportional to 4,059,236 and 8,921,992

Step by Step Solution

1. Step 1: Write the proportion equation
   4,059,236 : 8,921,992 = 8,921,992 : x
2. Step 2: Convert to fraction form
   4,059,236/8,921,992 = 8,921,992/x
3. Step 3: Cross multiply
   4,059,236x = 8,921,992 × 8,921,992
4. Step 4: Simplify right side
   4,059,236x = 79,601,941,248,064
5. Step 5: Solve for x
   x = 79,601,941,248,064/4,059,236
6. Step 6: Final answer
   x = 19,610,079.64