Finding the Third Proportional to 605,688 and 1,317,432

Step by Step Solution

1. Step 1: Write the proportion equation
   605,688 : 1,317,432 = 1,317,432 : x
2. Step 2: Convert to fraction form
   605,688/1,317,432 = 1,317,432/x
3. Step 3: Cross multiply
   605,688x = 1,317,432 × 1,317,432
4. Step 4: Simplify right side
   605,688x = 1,735,627,074,624
5. Step 5: Solve for x
   x = 1,735,627,074,624/605,688
6. Step 6: Final answer
   x = 2,865,546.41