Finding the Third Proportional to 3,556,558 and 8,392,948

Step by Step Solution

1. Step 1: Write the proportion equation
   3,556,558 : 8,392,948 = 8,392,948 : x
2. Step 2: Convert to fraction form
   3,556,558/8,392,948 = 8,392,948/x
3. Step 3: Cross multiply
   3,556,558x = 8,392,948 × 8,392,948
4. Step 4: Simplify right side
   3,556,558x = 70,441,576,130,704
5. Step 5: Solve for x
   x = 70,441,576,130,704/3,556,558
6. Step 6: Final answer
   x = 19,806,109.20