Finding the Third Proportional to 11,478,356 and 17,579,120

Step by Step Solution

1. Step 1: Write the proportion equation
   11,478,356 : 17,579,120 = 17,579,120 : x
2. Step 2: Convert to fraction form
   11,478,356/17,579,120 = 17,579,120/x
3. Step 3: Cross multiply
   11,478,356x = 17,579,120 × 17,579,120
4. Step 4: Simplify right side
   11,478,356x = 309,025,459,974,400
5. Step 5: Solve for x
   x = 309,025,459,974,400/11,478,356
6. Step 6: Final answer
   x = 26,922,449.52