Finding the Third Proportional to 4,661,003,305 and 9,986,839,298

Step by Step Solution

1. Step 1: Write the proportion equation
   4,661,003,305 : 9,986,839,298 = 9,986,839,298 : x
2. Step 2: Convert to fraction form
   4,661,003,305/9,986,839,298 = 9,986,839,298/x
3. Step 3: Cross multiply
   4,661,003,305x = 9,986,839,298 × 9,986,839,298
4. Step 4: Simplify right side
   4,661,003,305x = 99,736,959,164,077,129,728
5. Step 5: Solve for x
   x = 99,736,959,164,077,129,728/4,661,003,305
6. Step 6: Final answer
   x = 21,398,173,877.52