Finding the Third Proportional to 2,196,176 and 4,742,272

Step by Step Solution

1. Step 1: Write the proportion equation
   2,196,176 : 4,742,272 = 4,742,272 : x
2. Step 2: Convert to fraction form
   2,196,176/4,742,272 = 4,742,272/x
3. Step 3: Cross multiply
   2,196,176x = 4,742,272 × 4,742,272
4. Step 4: Simplify right side
   2,196,176x = 22,489,143,721,984
5. Step 5: Solve for x
   x = 22,489,143,721,984/2,196,176
6. Step 6: Final answer
   x = 10,240,137.28