Finding the Third Proportional to 2,499,217,690 and 5,205,294,152

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499,217,690 : 5,205,294,152 = 5,205,294,152 : x
2. Step 2: Convert to fraction form
   2,499,217,690/5,205,294,152 = 5,205,294,152/x
3. Step 3: Cross multiply
   2,499,217,690x = 5,205,294,152 × 5,205,294,152
4. Step 4: Simplify right side
   2,499,217,690x = 27,095,087,208,845,398,016
5. Step 5: Solve for x
   x = 27,095,087,208,845,398,016/2,499,217,690
6. Step 6: Final answer
   x = 10,841,427,426.37