Finding the Third Proportional to 708,949.50 and 1,089,706.50

Step by Step Solution

1. Step 1: Write the proportion equation
   708,949.50 : 1,089,706.50 = 1,089,706.50 : x
2. Step 2: Convert to fraction form
   708,949.50/1,089,706.50 = 1,089,706.50/x
3. Step 3: Cross multiply
   708,949.50x = 1,089,706.50 × 1,089,706.50
4. Step 4: Simplify right side
   708,949.50x = 1,187,460,256,142.25
5. Step 5: Solve for x
   x = 1,187,460,256,142.25/708,949.50
6. Step 6: Final answer
   x = 1,674,957.46