Finding the Third Proportional to 5,380,740 and 7,994,484

Step by Step Solution

1. Step 1: Write the proportion equation
   5,380,740 : 7,994,484 = 7,994,484 : x
2. Step 2: Convert to fraction form
   5,380,740/7,994,484 = 7,994,484/x
3. Step 3: Cross multiply
   5,380,740x = 7,994,484 × 7,994,484
4. Step 4: Simplify right side
   5,380,740x = 63,911,774,426,256
5. Step 5: Solve for x
   x = 63,911,774,426,256/5,380,740
6. Step 6: Final answer
   x = 11,877,878.21