Finding the Third Proportional to 266,640 and 375,060

Step by Step Solution

1. Step 1: Write the proportion equation
   266,640 : 375,060 = 375,060 : x
2. Step 2: Convert to fraction form
   266,640/375,060 = 375,060/x
3. Step 3: Cross multiply
   266,640x = 375,060 × 375,060
4. Step 4: Simplify right side
   266,640x = 140,670,003,600
5. Step 5: Solve for x
   x = 140,670,003,600/266,640
6. Step 6: Final answer
   x = 527,565.27