Finding the Third Proportional to 1,072,426,648 and 1,639,831,456

Step by Step Solution

1. Step 1: Write the proportion equation
   1,072,426,648 : 1,639,831,456 = 1,639,831,456 : x
2. Step 2: Convert to fraction form
   1,072,426,648/1,639,831,456 = 1,639,831,456/x
3. Step 3: Cross multiply
   1,072,426,648x = 1,639,831,456 × 1,639,831,456
4. Step 4: Simplify right side
   1,072,426,648x = 2,689,047,204,087,079,936
5. Step 5: Solve for x
   x = 2,689,047,204,087,079,936/1,072,426,648
6. Step 6: Final answer
   x = 2,507,441,613.00