Finding the Third Proportional to 1,421,502 and 3,355,680

Step by Step Solution

1. Step 1: Write the proportion equation
   1,421,502 : 3,355,680 = 3,355,680 : x
2. Step 2: Convert to fraction form
   1,421,502/3,355,680 = 3,355,680/x
3. Step 3: Cross multiply
   1,421,502x = 3,355,680 × 3,355,680
4. Step 4: Simplify right side
   1,421,502x = 11,260,588,262,400
5. Step 5: Solve for x
   x = 11,260,588,262,400/1,421,502
6. Step 6: Final answer
   x = 7,921,612.68