Finding the Third Proportional to 266,719.50 and 581,370

Step by Step Solution

1. Step 1: Write the proportion equation
   266,719.50 : 581,370 = 581,370 : x
2. Step 2: Convert to fraction form
   266,719.50/581,370 = 581,370/x
3. Step 3: Cross multiply
   266,719.50x = 581,370 × 581,370
4. Step 4: Simplify right side
   266,719.50x = 337,991,076,900
5. Step 5: Solve for x
   x = 337,991,076,900/266,719.50
6. Step 6: Final answer
   x = 1,267,215.47