Finding the Third Proportional to 620,970 and 1,358,172

Step by Step Solution

1. Step 1: Write the proportion equation
   620,970 : 1,358,172 = 1,358,172 : x
2. Step 2: Convert to fraction form
   620,970/1,358,172 = 1,358,172/x
3. Step 3: Cross multiply
   620,970x = 1,358,172 × 1,358,172
4. Step 4: Simplify right side
   620,970x = 1,844,631,181,584
5. Step 5: Solve for x
   x = 1,844,631,181,584/620,970
6. Step 6: Final answer
   x = 2,970,564.09