Finding the Third Proportional to 6,404,058 and 9,905,346

Step by Step Solution

1. Step 1: Write the proportion equation
   6,404,058 : 9,905,346 = 9,905,346 : x
2. Step 2: Convert to fraction form
   6,404,058/9,905,346 = 9,905,346/x
3. Step 3: Cross multiply
   6,404,058x = 9,905,346 × 9,905,346
4. Step 4: Simplify right side
   6,404,058x = 98,115,879,379,716
5. Step 5: Solve for x
   x = 98,115,879,379,716/6,404,058
6. Step 6: Final answer
   x = 15,320,891.75