Finding the Third Proportional to 2,499,217,693 and 5,205,294,157

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499,217,693 : 5,205,294,157 = 5,205,294,157 : x
2. Step 2: Convert to fraction form
   2,499,217,693/5,205,294,157 = 5,205,294,157/x
3. Step 3: Cross multiply
   2,499,217,693x = 5,205,294,157 × 5,205,294,157
4. Step 4: Simplify right side
   2,499,217,693x = 27,095,087,260,898,340,864
5. Step 5: Solve for x
   x = 27,095,087,260,898,340,864/2,499,217,693
6. Step 6: Final answer
   x = 10,841,427,434.19