Finding the Third Proportional to 1,621,669,264 and 3,540,591,194

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621,669,264 : 3,540,591,194 = 3,540,591,194 : x
2. Step 2: Convert to fraction form
   1,621,669,264/3,540,591,194 = 3,540,591,194/x
3. Step 3: Cross multiply
   1,621,669,264x = 3,540,591,194 × 3,540,591,194
4. Step 4: Simplify right side
   1,621,669,264x = 12,535,786,003,030,345,728
5. Step 5: Solve for x
   x = 12,535,786,003,030,345,728/1,621,669,264
6. Step 6: Final answer
   x = 7,730,174,260.14