Finding the Third Proportional to 2,161,359,074 and 5,097,085,205

Step by Step Solution

1. Step 1: Write the proportion equation
   2,161,359,074 : 5,097,085,205 = 5,097,085,205 : x
2. Step 2: Convert to fraction form
   2,161,359,074/5,097,085,205 = 5,097,085,205/x
3. Step 3: Cross multiply
   2,161,359,074x = 5,097,085,205 × 5,097,085,205
4. Step 4: Simplify right side
   2,161,359,074x = 25,980,277,587,029,893,120
5. Step 5: Solve for x
   x = 25,980,277,587,029,893,120/2,161,359,074
6. Step 6: Final answer
   x = 12,020,343,079.30