Finding the Third Proportional to 402,783,282 and 867,543,404

Step by Step Solution

1. Step 1: Write the proportion equation
   402,783,282 : 867,543,404 = 867,543,404 : x
2. Step 2: Convert to fraction form
   402,783,282/867,543,404 = 867,543,404/x
3. Step 3: Cross multiply
   402,783,282x = 867,543,404 × 867,543,404
4. Step 4: Simplify right side
   402,783,282x = 752,631,557,823,907,200
5. Step 5: Solve for x
   x = 752,631,557,823,907,200/402,783,282
6. Step 6: Final answer
   x = 1,868,576,953.06