Finding the Third Proportional to 788,072 and 1,686,736

Step by Step Solution

1. Step 1: Write the proportion equation
   788,072 : 1,686,736 = 1,686,736 : x
2. Step 2: Convert to fraction form
   788,072/1,686,736 = 1,686,736/x
3. Step 3: Cross multiply
   788,072x = 1,686,736 × 1,686,736
4. Step 4: Simplify right side
   788,072x = 2,845,078,333,696
5. Step 5: Solve for x
   x = 2,845,078,333,696/788,072
6. Step 6: Final answer
   x = 3,610,175.64