Finding the Third Proportional to 5,058,508 and 7,398,438

Step by Step Solution

1. Step 1: Write the proportion equation
   5,058,508 : 7,398,438 = 7,398,438 : x
2. Step 2: Convert to fraction form
   5,058,508/7,398,438 = 7,398,438/x
3. Step 3: Cross multiply
   5,058,508x = 7,398,438 × 7,398,438
4. Step 4: Simplify right side
   5,058,508x = 54,736,884,839,844
5. Step 5: Solve for x
   x = 54,736,884,839,844/5,058,508
6. Step 6: Final answer
   x = 10,820,756.80