Finding the Third Proportional to 6,404,091 and 9,905,394

Step by Step Solution

1. Step 1: Write the proportion equation
   6,404,091 : 9,905,394 = 9,905,394 : x
2. Step 2: Convert to fraction form
   6,404,091/9,905,394 = 9,905,394/x
3. Step 3: Cross multiply
   6,404,091x = 9,905,394 × 9,905,394
4. Step 4: Simplify right side
   6,404,091x = 98,116,830,295,236
5. Step 5: Solve for x
   x = 98,116,830,295,236/6,404,091
6. Step 6: Final answer
   x = 15,320,961.29