Finding the Third Proportional to 1,556,280 and 2,334,420

Step by Step Solution

1. Step 1: Write the proportion equation
   1,556,280 : 2,334,420 = 2,334,420 : x
2. Step 2: Convert to fraction form
   1,556,280/2,334,420 = 2,334,420/x
3. Step 3: Cross multiply
   1,556,280x = 2,334,420 × 2,334,420
4. Step 4: Simplify right side
   1,556,280x = 5,449,516,736,400
5. Step 5: Solve for x
   x = 5,449,516,736,400/1,556,280
6. Step 6: Final answer
   x = 3,501,630