Finding the Third Proportional to 1,506,215 and 3,311,328

Step by Step Solution

1. Step 1: Write the proportion equation
   1,506,215 : 3,311,328 = 3,311,328 : x
2. Step 2: Convert to fraction form
   1,506,215/3,311,328 = 3,311,328/x
3. Step 3: Cross multiply
   1,506,215x = 3,311,328 × 3,311,328
4. Step 4: Simplify right side
   1,506,215x = 10,964,893,123,584
5. Step 5: Solve for x
   x = 10,964,893,123,584/1,506,215
6. Step 6: Final answer
   x = 7,279,766.25