Finding the Third Proportional to 620,916 and 1,358,064

Step by Step Solution

1. Step 1: Write the proportion equation
   620,916 : 1,358,064 = 1,358,064 : x
2. Step 2: Convert to fraction form
   620,916/1,358,064 = 1,358,064/x
3. Step 3: Cross multiply
   620,916x = 1,358,064 × 1,358,064
4. Step 4: Simplify right side
   620,916x = 1,844,337,828,096
5. Step 5: Solve for x
   x = 1,844,337,828,096/620,916
6. Step 6: Final answer
   x = 2,970,349.98