Finding the Third Proportional to 627,516 and 1,292,168

Step by Step Solution

1. Step 1: Write the proportion equation
   627,516 : 1,292,168 = 1,292,168 : x
2. Step 2: Convert to fraction form
   627,516/1,292,168 = 1,292,168/x
3. Step 3: Cross multiply
   627,516x = 1,292,168 × 1,292,168
4. Step 4: Simplify right side
   627,516x = 1,669,698,140,224
5. Step 5: Solve for x
   x = 1,669,698,140,224/627,516
6. Step 6: Final answer
   x = 2,660,805.68