Finding the Third Proportional to 6,404,053 and 9,905,339

Step by Step Solution

1. Step 1: Write the proportion equation
   6,404,053 : 9,905,339 = 9,905,339 : x
2. Step 2: Convert to fraction form
   6,404,053/9,905,339 = 9,905,339/x
3. Step 3: Cross multiply
   6,404,053x = 9,905,339 × 9,905,339
4. Step 4: Simplify right side
   6,404,053x = 98,115,740,704,921
5. Step 5: Solve for x
   x = 98,115,740,704,921/6,404,053
6. Step 6: Final answer
   x = 15,320,882.06