Finding the Third Proportional to 3,135,470 and 4,582,220

Step by Step Solution

1. Step 1: Write the proportion equation
   3,135,470 : 4,582,220 = 4,582,220 : x
2. Step 2: Convert to fraction form
   3,135,470/4,582,220 = 4,582,220/x
3. Step 3: Cross multiply
   3,135,470x = 4,582,220 × 4,582,220
4. Step 4: Simplify right side
   3,135,470x = 20,996,740,128,400
5. Step 5: Solve for x
   x = 20,996,740,128,400/3,135,470
6. Step 6: Final answer
   x = 6,696,520.82