Finding the Third Proportional to 9,160,929 and 19,900,386

Step by Step Solution

1. Step 1: Write the proportion equation
   9,160,929 : 19,900,386 = 19,900,386 : x
2. Step 2: Convert to fraction form
   9,160,929/19,900,386 = 19,900,386/x
3. Step 3: Cross multiply
   9,160,929x = 19,900,386 × 19,900,386
4. Step 4: Simplify right side
   9,160,929x = 396,025,362,948,996
5. Step 5: Solve for x
   x = 396,025,362,948,996/9,160,929
6. Step 6: Final answer
   x = 43,229,825.59