Finding the Third Proportional to 3,604,408 and 8,381,164

Step by Step Solution

1. Step 1: Write the proportion equation
   3,604,408 : 8,381,164 = 8,381,164 : x
2. Step 2: Convert to fraction form
   3,604,408/8,381,164 = 8,381,164/x
3. Step 3: Cross multiply
   3,604,408x = 8,381,164 × 8,381,164
4. Step 4: Simplify right side
   3,604,408x = 70,243,909,994,896
5. Step 5: Solve for x
   x = 70,243,909,994,896/3,604,408
6. Step 6: Final answer
   x = 19,488,334.84