Finding the Third Proportional to 8,971,818 and 19,458,012

Step by Step Solution

1. Step 1: Write the proportion equation
   8,971,818 : 19,458,012 = 19,458,012 : x
2. Step 2: Convert to fraction form
   8,971,818/19,458,012 = 19,458,012/x
3. Step 3: Cross multiply
   8,971,818x = 19,458,012 × 19,458,012
4. Step 4: Simplify right side
   8,971,818x = 378,614,230,992,144
5. Step 5: Solve for x
   x = 378,614,230,992,144/8,971,818
6. Step 6: Final answer
   x = 42,200,391.38