Finding the Third Proportional to 617,212 and 1,346,456

Step by Step Solution

1. Step 1: Write the proportion equation
   617,212 : 1,346,456 = 1,346,456 : x
2. Step 2: Convert to fraction form
   617,212/1,346,456 = 1,346,456/x
3. Step 3: Cross multiply
   617,212x = 1,346,456 × 1,346,456
4. Step 4: Simplify right side
   617,212x = 1,812,943,759,936
5. Step 5: Solve for x
   x = 1,812,943,759,936/617,212
6. Step 6: Final answer
   x = 2,937,311.26