Finding the Third Proportional to 878,607 and 1,781,662.50

Step by Step Solution

1. Step 1: Write the proportion equation
   878,607 : 1,781,662.50 = 1,781,662.50 : x
2. Step 2: Convert to fraction form
   878,607/1,781,662.50 = 1,781,662.50/x
3. Step 3: Cross multiply
   878,607x = 1,781,662.50 × 1,781,662.50
4. Step 4: Simplify right side
   878,607x = 3,174,321,263,906.25
5. Step 5: Solve for x
   x = 3,174,321,263,906.25/878,607
6. Step 6: Final answer
   x = 3,612,902.31