Finding the Third Proportional to 620,918 and 1,358,070

Step by Step Solution

1. Step 1: Write the proportion equation
   620,918 : 1,358,070 = 1,358,070 : x
2. Step 2: Convert to fraction form
   620,918/1,358,070 = 1,358,070/x
3. Step 3: Cross multiply
   620,918x = 1,358,070 × 1,358,070
4. Step 4: Simplify right side
   620,918x = 1,844,354,124,900
5. Step 5: Solve for x
   x = 1,844,354,124,900/620,918
6. Step 6: Final answer
   x = 2,970,366.66