Finding the Third Proportional to 2,129,104,399.50 and 4,659,577,150.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,129,104,399.50 : 4,659,577,150.50 = 4,659,577,150.50 : x
2. Step 2: Convert to fraction form
   2,129,104,399.50/4,659,577,150.50 = 4,659,577,150.50/x
3. Step 3: Cross multiply
   2,129,104,399.50x = 4,659,577,150.50 × 4,659,577,150.50
4. Step 4: Simplify right side
   2,129,104,399.50x = 21,711,659,221,461,700,608
5. Step 5: Solve for x
   x = 21,711,659,221,461,700,608/2,129,104,399.50
6. Step 6: Final answer
   x = 10,197,555,003.20