Finding the Third Proportional to 1,515,845,805 and 3,298,613,274

Step by Step Solution

1. Step 1: Write the proportion equation
   1,515,845,805 : 3,298,613,274 = 3,298,613,274 : x
2. Step 2: Convert to fraction form
   1,515,845,805/3,298,613,274 = 3,298,613,274/x
3. Step 3: Cross multiply
   1,515,845,805x = 3,298,613,274 × 3,298,613,274
4. Step 4: Simplify right side
   1,515,845,805x = 10,880,849,531,408,998,400
5. Step 5: Solve for x
   x = 10,880,849,531,408,998,400/1,515,845,805
6. Step 6: Final answer
   x = 7,178,071,473.71