Finding the Third Proportional to 402,783,158 and 867,543,162

Step by Step Solution

1. Step 1: Write the proportion equation
   402,783,158 : 867,543,162 = 867,543,162 : x
2. Step 2: Convert to fraction form
   402,783,158/867,543,162 = 867,543,162/x
3. Step 3: Cross multiply
   402,783,158x = 867,543,162 × 867,543,162
4. Step 4: Simplify right side
   402,783,158x = 752,631,137,932,958,208
5. Step 5: Solve for x
   x = 752,631,137,932,958,208/402,783,158
6. Step 6: Final answer
   x = 1,868,576,485.84