Finding the Third Proportional to 6,404,076 and 9,905,373

Step by Step Solution

1. Step 1: Write the proportion equation
   6,404,076 : 9,905,373 = 9,905,373 : x
2. Step 2: Convert to fraction form
   6,404,076/9,905,373 = 9,905,373/x
3. Step 3: Cross multiply
   6,404,076x = 9,905,373 × 9,905,373
4. Step 4: Simplify right side
   6,404,076x = 98,116,414,269,129
5. Step 5: Solve for x
   x = 98,116,414,269,129/6,404,076
6. Step 6: Final answer
   x = 15,320,932.21