Finding the Third Proportional to 572,640 and 757,152

Step by Step Solution

1. Step 1: Write the proportion equation
   572,640 : 757,152 = 757,152 : x
2. Step 2: Convert to fraction form
   572,640/757,152 = 757,152/x
3. Step 3: Cross multiply
   572,640x = 757,152 × 757,152
4. Step 4: Simplify right side
   572,640x = 573,279,151,104
5. Step 5: Solve for x
   x = 573,279,151,104/572,640
6. Step 6: Final answer
   x = 1,001,116.15