Finding the Third Proportional to 13,443,680 and 20,663,904

Step by Step Solution

1. Step 1: Write the proportion equation
   13,443,680 : 20,663,904 = 20,663,904 : x
2. Step 2: Convert to fraction form
   13,443,680/20,663,904 = 20,663,904/x
3. Step 3: Cross multiply
   13,443,680x = 20,663,904 × 20,663,904
4. Step 4: Simplify right side
   13,443,680x = 426,996,928,521,216
5. Step 5: Solve for x
   x = 426,996,928,521,216/13,443,680
6. Step 6: Final answer
   x = 31,761,908.09