Finding the Third Proportional to 6,404,060 and 9,905,349

Step by Step Solution

1. Step 1: Write the proportion equation
   6,404,060 : 9,905,349 = 9,905,349 : x
2. Step 2: Convert to fraction form
   6,404,060/9,905,349 = 9,905,349/x
3. Step 3: Cross multiply
   6,404,060x = 9,905,349 × 9,905,349
4. Step 4: Simplify right side
   6,404,060x = 98,115,938,811,801
5. Step 5: Solve for x
   x = 98,115,938,811,801/6,404,060
6. Step 6: Final answer
   x = 15,320,896.25