Finding the Third Proportional to 9,142,558 and 19,661,036

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142,558 : 19,661,036 = 19,661,036 : x
2. Step 2: Convert to fraction form
   9,142,558/19,661,036 = 19,661,036/x
3. Step 3: Cross multiply
   9,142,558x = 19,661,036 × 19,661,036
4. Step 4: Simplify right side
   9,142,558x = 386,556,336,593,296
5. Step 5: Solve for x
   x = 386,556,336,593,296/9,142,558
6. Step 6: Final answer
   x = 42,280,982.70