Finding the Third Proportional to 30,814,869 and 72,873,798

Step by Step Solution

1. Step 1: Write the proportion equation
   30,814,869 : 72,873,798 = 72,873,798 : x
2. Step 2: Convert to fraction form
   30,814,869/72,873,798 = 72,873,798/x
3. Step 3: Cross multiply
   30,814,869x = 72,873,798 × 72,873,798
4. Step 4: Simplify right side
   30,814,869x = 5,310,590,434,944,804
5. Step 5: Solve for x
   x = 5,310,590,434,944,804/30,814,869
6. Step 6: Final answer
   x = 172,338,569.25