Finding the Third Proportional to 815,151 and 1,918,016.50

Step by Step Solution

1. Step 1: Write the proportion equation
   815,151 : 1,918,016.50 = 1,918,016.50 : x
2. Step 2: Convert to fraction form
   815,151/1,918,016.50 = 1,918,016.50/x
3. Step 3: Cross multiply
   815,151x = 1,918,016.50 × 1,918,016.50
4. Step 4: Simplify right side
   815,151x = 3,678,787,294,272.25
5. Step 5: Solve for x
   x = 3,678,787,294,272.25/815,151
6. Step 6: Final answer
   x = 4,513,013.29