Finding the Third Proportional to 3,994,433 and 8,736,178

Step by Step Solution

1. Step 1: Write the proportion equation
   3,994,433 : 8,736,178 = 8,736,178 : x
2. Step 2: Convert to fraction form
   3,994,433/8,736,178 = 8,736,178/x
3. Step 3: Cross multiply
   3,994,433x = 8,736,178 × 8,736,178
4. Step 4: Simplify right side
   3,994,433x = 76,320,806,047,684
5. Step 5: Solve for x
   x = 76,320,806,047,684/3,994,433
6. Step 6: Final answer
   x = 19,106,793.39