Finding the Third Proportional to 437,406 and 656,109.75

Step by Step Solution

1. Step 1: Write the proportion equation
   437,406 : 656,109.75 = 656,109.75 : x
2. Step 2: Convert to fraction form
   437,406/656,109.75 = 656,109.75/x
3. Step 3: Cross multiply
   437,406x = 656,109.75 × 656,109.75
4. Step 4: Simplify right side
   437,406x = 430,480,004,045.06
5. Step 5: Solve for x
   x = 430,480,004,045.06/437,406
6. Step 6: Final answer
   x = 984,165.75