Finding the Third Proportional to 3,340,368 and 7,153,128

Step by Step Solution

1. Step 1: Write the proportion equation
   3,340,368 : 7,153,128 = 7,153,128 : x
2. Step 2: Convert to fraction form
   3,340,368/7,153,128 = 7,153,128/x
3. Step 3: Cross multiply
   3,340,368x = 7,153,128 × 7,153,128
4. Step 4: Simplify right side
   3,340,368x = 51,167,240,184,384
5. Step 5: Solve for x
   x = 51,167,240,184,384/3,340,368
6. Step 6: Final answer
   x = 15,317,845.27