Finding the Third Proportional to 1,621,669,271 and 3,540,591,208

Step by Step Solution

1. Step 1: Write the proportion equation
   1,621,669,271 : 3,540,591,208 = 3,540,591,208 : x
2. Step 2: Convert to fraction form
   1,621,669,271/3,540,591,208 = 3,540,591,208/x
3. Step 3: Cross multiply
   1,621,669,271x = 3,540,591,208 × 3,540,591,208
4. Step 4: Simplify right side
   1,621,669,271x = 12,535,786,102,166,898,688
5. Step 5: Solve for x
   x = 12,535,786,102,166,898,688/1,621,669,271
6. Step 6: Final answer
   x = 7,730,174,287.90