Finding the Third Proportional to 4,043,886 and 8,656,392

Step by Step Solution

1. Step 1: Write the proportion equation
   4,043,886 : 8,656,392 = 8,656,392 : x
2. Step 2: Convert to fraction form
   4,043,886/8,656,392 = 8,656,392/x
3. Step 3: Cross multiply
   4,043,886x = 8,656,392 × 8,656,392
4. Step 4: Simplify right side
   4,043,886x = 74,933,122,457,664
5. Step 5: Solve for x
   x = 74,933,122,457,664/4,043,886
6. Step 6: Final answer
   x = 18,529,978.95