Finding the Third Proportional to 402,783,152 and 867,543,150

Step by Step Solution

1. Step 1: Write the proportion equation
   402,783,152 : 867,543,150 = 867,543,150 : x
2. Step 2: Convert to fraction form
   402,783,152/867,543,150 = 867,543,150/x
3. Step 3: Cross multiply
   402,783,152x = 867,543,150 × 867,543,150
4. Step 4: Simplify right side
   402,783,152x = 752,631,117,111,922,560
5. Step 5: Solve for x
   x = 752,631,117,111,922,560/402,783,152
6. Step 6: Final answer
   x = 1,868,576,461.99