Finding the Third Proportional to 3,290,139 and 4,907,709

Step by Step Solution

1. Step 1: Write the proportion equation
   3,290,139 : 4,907,709 = 4,907,709 : x
2. Step 2: Convert to fraction form
   3,290,139/4,907,709 = 4,907,709/x
3. Step 3: Cross multiply
   3,290,139x = 4,907,709 × 4,907,709
4. Step 4: Simplify right side
   3,290,139x = 24,085,607,628,681
5. Step 5: Solve for x
   x = 24,085,607,628,681/3,290,139
6. Step 6: Final answer
   x = 7,320,544.10