Finding the Third Proportional to 1,676,220 and 3,620,365

Step by Step Solution

1. Step 1: Write the proportion equation
   1,676,220 : 3,620,365 = 3,620,365 : x
2. Step 2: Convert to fraction form
   1,676,220/3,620,365 = 3,620,365/x
3. Step 3: Cross multiply
   1,676,220x = 3,620,365 × 3,620,365
4. Step 4: Simplify right side
   1,676,220x = 13,107,042,733,225
5. Step 5: Solve for x
   x = 13,107,042,733,225/1,676,220
6. Step 6: Final answer
   x = 7,819,404.81