Finding the Third Proportional to 607,164 and 905,820

Step by Step Solution

1. Step 1: Write the proportion equation
   607,164 : 905,820 = 905,820 : x
2. Step 2: Convert to fraction form
   607,164/905,820 = 905,820/x
3. Step 3: Cross multiply
   607,164x = 905,820 × 905,820
4. Step 4: Simplify right side
   607,164x = 820,509,872,400
5. Step 5: Solve for x
   x = 820,509,872,400/607,164
6. Step 6: Final answer
   x = 1,351,380.97