Finding the Third Proportional to 703,462.50 and 1,089,945

Step by Step Solution

1. Step 1: Write the proportion equation
   703,462.50 : 1,089,945 = 1,089,945 : x
2. Step 2: Convert to fraction form
   703,462.50/1,089,945 = 1,089,945/x
3. Step 3: Cross multiply
   703,462.50x = 1,089,945 × 1,089,945
4. Step 4: Simplify right side
   703,462.50x = 1,187,980,103,025
5. Step 5: Solve for x
   x = 1,187,980,103,025/703,462.50
6. Step 6: Final answer
   x = 1,688,761.10