Finding the Third Proportional to 4,099,507 and 9,490,560

Step by Step Solution

1. Step 1: Write the proportion equation
   4,099,507 : 9,490,560 = 9,490,560 : x
2. Step 2: Convert to fraction form
   4,099,507/9,490,560 = 9,490,560/x
3. Step 3: Cross multiply
   4,099,507x = 9,490,560 × 9,490,560
4. Step 4: Simplify right side
   4,099,507x = 90,070,729,113,600
5. Step 5: Solve for x
   x = 90,070,729,113,600/4,099,507
6. Step 6: Final answer
   x = 21,971,112.41