Finding the Third Proportional to 751,808.50 and 1,086,233.50

Step by Step Solution

1. Step 1: Write the proportion equation
   751,808.50 : 1,086,233.50 = 1,086,233.50 : x
2. Step 2: Convert to fraction form
   751,808.50/1,086,233.50 = 1,086,233.50/x
3. Step 3: Cross multiply
   751,808.50x = 1,086,233.50 × 1,086,233.50
4. Step 4: Simplify right side
   751,808.50x = 1,179,903,216,522.25
5. Step 5: Solve for x
   x = 1,179,903,216,522.25/751,808.50
6. Step 6: Final answer
   x = 1,569,419.89