Finding the Third Proportional to 788,173.50 and 1,222,921.50

Step by Step Solution

1. Step 1: Write the proportion equation
   788,173.50 : 1,222,921.50 = 1,222,921.50 : x
2. Step 2: Convert to fraction form
   788,173.50/1,222,921.50 = 1,222,921.50/x
3. Step 3: Cross multiply
   788,173.50x = 1,222,921.50 × 1,222,921.50
4. Step 4: Simplify right side
   788,173.50x = 1,495,536,995,162.25
5. Step 5: Solve for x
   x = 1,495,536,995,162.25/788,173.50
6. Step 6: Final answer
   x = 1,897,471.81