Finding the Third Proportional to 5,180,400 and 7,842,852

Step by Step Solution

1. Step 1: Write the proportion equation
   5,180,400 : 7,842,852 = 7,842,852 : x
2. Step 2: Convert to fraction form
   5,180,400/7,842,852 = 7,842,852/x
3. Step 3: Cross multiply
   5,180,400x = 7,842,852 × 7,842,852
4. Step 4: Simplify right side
   5,180,400x = 61,510,327,493,904
5. Step 5: Solve for x
   x = 61,510,327,493,904/5,180,400
6. Step 6: Final answer
   x = 11,873,663.71