Finding the Third Proportional to 2,499,217,698 and 5,205,294,166

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499,217,698 : 5,205,294,166 = 5,205,294,166 : x
2. Step 2: Convert to fraction form
   2,499,217,698/5,205,294,166 = 5,205,294,166/x
3. Step 3: Cross multiply
   2,499,217,698x = 5,205,294,166 × 5,205,294,166
4. Step 4: Simplify right side
   2,499,217,698x = 27,095,087,354,593,636,352
5. Step 5: Solve for x
   x = 27,095,087,354,593,636,352/2,499,217,698
6. Step 6: Final answer
   x = 10,841,427,449.99