Finding the Third Proportional to 13,291,748 and 19,915,449

Step by Step Solution

1. Step 1: Write the proportion equation
   13,291,748 : 19,915,449 = 19,915,449 : x
2. Step 2: Convert to fraction form
   13,291,748/19,915,449 = 19,915,449/x
3. Step 3: Cross multiply
   13,291,748x = 19,915,449 × 19,915,449
4. Step 4: Simplify right side
   13,291,748x = 396,625,108,871,601
5. Step 5: Solve for x
   x = 396,625,108,871,601/13,291,748
6. Step 6: Final answer
   x = 29,839,950.99