Finding the Third Proportional to 981,228,856.50 and 2,153,110,086

Step by Step Solution

1. Step 1: Write the proportion equation
   981,228,856.50 : 2,153,110,086 = 2,153,110,086 : x
2. Step 2: Convert to fraction form
   981,228,856.50/2,153,110,086 = 2,153,110,086/x
3. Step 3: Cross multiply
   981,228,856.50x = 2,153,110,086 × 2,153,110,086
4. Step 4: Simplify right side
   981,228,856.50x = 4,635,883,042,434,927,616
5. Step 5: Solve for x
   x = 4,635,883,042,434,927,616/981,228,856.50
6. Step 6: Final answer
   x = 4,724,568,597.56