Finding the Third Proportional to 9,142,200 and 19,499,400

Step by Step Solution

1. Step 1: Write the proportion equation
   9,142,200 : 19,499,400 = 19,499,400 : x
2. Step 2: Convert to fraction form
   9,142,200/19,499,400 = 19,499,400/x
3. Step 3: Cross multiply
   9,142,200x = 19,499,400 × 19,499,400
4. Step 4: Simplify right side
   9,142,200x = 380,226,600,360,000
5. Step 5: Solve for x
   x = 380,226,600,360,000/9,142,200
6. Step 6: Final answer
   x = 41,590,273.72