Finding the Third Proportional to 17,992,415 and 39,179,470

Step by Step Solution

1. Step 1: Write the proportion equation
   17,992,415 : 39,179,470 = 39,179,470 : x
2. Step 2: Convert to fraction form
   17,992,415/39,179,470 = 39,179,470/x
3. Step 3: Cross multiply
   17,992,415x = 39,179,470 × 39,179,470
4. Step 4: Simplify right side
   17,992,415x = 1,535,030,869,480,900
5. Step 5: Solve for x
   x = 1,535,030,869,480,900/17,992,415
6. Step 6: Final answer
   x = 85,315,443.73