Finding the Third Proportional to 19,388,133 and 28,707,858

Step by Step Solution

1. Step 1: Write the proportion equation
   19,388,133 : 28,707,858 = 28,707,858 : x
2. Step 2: Convert to fraction form
   19,388,133/28,707,858 = 28,707,858/x
3. Step 3: Cross multiply
   19,388,133x = 28,707,858 × 28,707,858
4. Step 4: Simplify right side
   19,388,133x = 824,141,110,948,164
5. Step 5: Solve for x
   x = 824,141,110,948,164/19,388,133
6. Step 6: Final answer
   x = 42,507,502.45