Finding the Third Proportional to 11,429,456 and 15,564,792

Step by Step Solution

1. Step 1: Write the proportion equation
   11,429,456 : 15,564,792 = 15,564,792 : x
2. Step 2: Convert to fraction form
   11,429,456/15,564,792 = 15,564,792/x
3. Step 3: Cross multiply
   11,429,456x = 15,564,792 × 15,564,792
4. Step 4: Simplify right side
   11,429,456x = 242,262,750,003,264
5. Step 5: Solve for x
   x = 242,262,750,003,264/11,429,456
6. Step 6: Final answer
   x = 21,196,350.03