Finding the Third Proportional to 3,742,128 and 5,213,727

Step by Step Solution

1. Step 1: Write the proportion equation
   3,742,128 : 5,213,727 = 5,213,727 : x
2. Step 2: Convert to fraction form
   3,742,128/5,213,727 = 5,213,727/x
3. Step 3: Cross multiply
   3,742,128x = 5,213,727 × 5,213,727
4. Step 4: Simplify right side
   3,742,128x = 27,182,949,230,529
5. Step 5: Solve for x
   x = 27,182,949,230,529/3,742,128
6. Step 6: Final answer
   x = 7,264,035.12