Finding the Third Proportional to 311,741 and 670,101.06

Step by Step Solution

1. Step 1: Write the proportion equation
   311,741 : 670,101.06 = 670,101.06 : x
2. Step 2: Convert to fraction form
   311,741/670,101.06 = 670,101.06/x
3. Step 3: Cross multiply
   311,741x = 670,101.06 × 670,101.06
4. Step 4: Simplify right side
   311,741x = 449,035,433,963.63
5. Step 5: Solve for x
   x = 449,035,433,963.63/311,741
6. Step 6: Final answer
   x = 1,440,411.86