Finding the Third Proportional to 2,515,404 and 5,429,154

Step by Step Solution

1. Step 1: Write the proportion equation
   2,515,404 : 5,429,154 = 5,429,154 : x
2. Step 2: Convert to fraction form
   2,515,404/5,429,154 = 5,429,154/x
3. Step 3: Cross multiply
   2,515,404x = 5,429,154 × 5,429,154
4. Step 4: Simplify right side
   2,515,404x = 29,475,713,155,716
5. Step 5: Solve for x
   x = 29,475,713,155,716/2,515,404
6. Step 6: Final answer
   x = 11,718,083.12