Finding the Third Proportional to 786,072 and 1,684,284

Step by Step Solution

1. Step 1: Write the proportion equation
   786,072 : 1,684,284 = 1,684,284 : x
2. Step 2: Convert to fraction form
   786,072/1,684,284 = 1,684,284/x
3. Step 3: Cross multiply
   786,072x = 1,684,284 × 1,684,284
4. Step 4: Simplify right side
   786,072x = 2,836,812,592,656
5. Step 5: Solve for x
   x = 2,836,812,592,656/786,072
6. Step 6: Final answer
   x = 3,608,845.75