Finding the Third Proportional to 620,900 and 1,358,035

Step by Step Solution

1. Step 1: Write the proportion equation
   620,900 : 1,358,035 = 1,358,035 : x
2. Step 2: Convert to fraction form
   620,900/1,358,035 = 1,358,035/x
3. Step 3: Cross multiply
   620,900x = 1,358,035 × 1,358,035
4. Step 4: Simplify right side
   620,900x = 1,844,259,061,225
5. Step 5: Solve for x
   x = 1,844,259,061,225/620,900
6. Step 6: Final answer
   x = 2,970,299.66