Finding the Third Proportional to 72,147,642 and 154,510,740

Step by Step Solution

1. Step 1: Write the proportion equation
   72,147,642 : 154,510,740 = 154,510,740 : x
2. Step 2: Convert to fraction form
   72,147,642/154,510,740 = 154,510,740/x
3. Step 3: Cross multiply
   72,147,642x = 154,510,740 × 154,510,740
4. Step 4: Simplify right side
   72,147,642x = 23,873,568,775,347,600
5. Step 5: Solve for x
   x = 23,873,568,775,347,600/72,147,642
6. Step 6: Final answer
   x = 330,898,808.52