Finding the Third Proportional to 718,693.50 and 1,458,505.50

Step by Step Solution

1. Step 1: Write the proportion equation
   718,693.50 : 1,458,505.50 = 1,458,505.50 : x
2. Step 2: Convert to fraction form
   718,693.50/1,458,505.50 = 1,458,505.50/x
3. Step 3: Cross multiply
   718,693.50x = 1,458,505.50 × 1,458,505.50
4. Step 4: Simplify right side
   718,693.50x = 2,127,238,293,530.25
5. Step 5: Solve for x
   x = 2,127,238,293,530.25/718,693.50
6. Step 6: Final answer
   x = 2,959,868.56