Finding the Third Proportional to 1,655,220 and 3,555,402

Step by Step Solution

1. Step 1: Write the proportion equation
   1,655,220 : 3,555,402 = 3,555,402 : x
2. Step 2: Convert to fraction form
   1,655,220/3,555,402 = 3,555,402/x
3. Step 3: Cross multiply
   1,655,220x = 3,555,402 × 3,555,402
4. Step 4: Simplify right side
   1,655,220x = 12,640,883,381,604
5. Step 5: Solve for x
   x = 12,640,883,381,604/1,655,220
6. Step 6: Final answer
   x = 7,636,980.81