Finding the Third Proportional to 9,243,113 and 19,947,688

Step by Step Solution

1. Step 1: Write the proportion equation
   9,243,113 : 19,947,688 = 19,947,688 : x
2. Step 2: Convert to fraction form
   9,243,113/19,947,688 = 19,947,688/x
3. Step 3: Cross multiply
   9,243,113x = 19,947,688 × 19,947,688
4. Step 4: Simplify right side
   9,243,113x = 397,910,256,545,344
5. Step 5: Solve for x
   x = 397,910,256,545,344/9,243,113
6. Step 6: Final answer
   x = 43,049,377.04