Finding the Third Proportional to 2,499,217,694 and 5,205,294,159

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499,217,694 : 5,205,294,159 = 5,205,294,159 : x
2. Step 2: Convert to fraction form
   2,499,217,694/5,205,294,159 = 5,205,294,159/x
3. Step 3: Cross multiply
   2,499,217,694x = 5,205,294,159 × 5,205,294,159
4. Step 4: Simplify right side
   2,499,217,694x = 27,095,087,281,719,517,184
5. Step 5: Solve for x
   x = 27,095,087,281,719,517,184/2,499,217,694
6. Step 6: Final answer
   x = 10,841,427,438.18