Finding the Third Proportional to 21,163,120 and 30,928,086

Step by Step Solution

1. Step 1: Write the proportion equation
   21,163,120 : 30,928,086 = 30,928,086 : x
2. Step 2: Convert to fraction form
   21,163,120/30,928,086 = 30,928,086/x
3. Step 3: Cross multiply
   21,163,120x = 30,928,086 × 30,928,086
4. Step 4: Simplify right side
   21,163,120x = 956,546,503,623,396
5. Step 5: Solve for x
   x = 956,546,503,623,396/21,163,120
6. Step 6: Final answer
   x = 45,198,746.86