Finding the Third Proportional to 2,499,217,478 and 5,205,293,665

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499,217,478 : 5,205,293,665 = 5,205,293,665 : x
2. Step 2: Convert to fraction form
   2,499,217,478/5,205,293,665 = 5,205,293,665/x
3. Step 3: Cross multiply
   2,499,217,478x = 5,205,293,665 × 5,205,293,665
4. Step 4: Simplify right side
   2,499,217,478x = 27,095,082,138,889,134,080
5. Step 5: Solve for x
   x = 27,095,082,138,889,134,080/2,499,217,478
6. Step 6: Final answer
   x = 10,841,426,317.40