Finding the Third Proportional to 30,858,784 and 42,031,103

Step by Step Solution

1. Step 1: Write the proportion equation
   30,858,784 : 42,031,103 = 42,031,103 : x
2. Step 2: Convert to fraction form
   30,858,784/42,031,103 = 42,031,103/x
3. Step 3: Cross multiply
   30,858,784x = 42,031,103 × 42,031,103
4. Step 4: Simplify right side
   30,858,784x = 1,766,613,619,396,609
5. Step 5: Solve for x
   x = 1,766,613,619,396,609/30,858,784
6. Step 6: Final answer
   x = 57,248,322.53