Finding the Third Proportional to 11,232,544 and 21,905,216

Step by Step Solution

1. Step 1: Write the proportion equation
   11,232,544 : 21,905,216 = 21,905,216 : x
2. Step 2: Convert to fraction form
   11,232,544/21,905,216 = 21,905,216/x
3. Step 3: Cross multiply
   11,232,544x = 21,905,216 × 21,905,216
4. Step 4: Simplify right side
   11,232,544x = 479,838,488,006,656
5. Step 5: Solve for x
   x = 479,838,488,006,656/11,232,544
6. Step 6: Final answer
   x = 42,718,594.11