Finding the Third Proportional to 431,976 and 891,553.50

Step by Step Solution

1. Step 1: Write the proportion equation
   431,976 : 891,553.50 = 891,553.50 : x
2. Step 2: Convert to fraction form
   431,976/891,553.50 = 891,553.50/x
3. Step 3: Cross multiply
   431,976x = 891,553.50 × 891,553.50
4. Step 4: Simplify right side
   431,976x = 794,867,643,362.25
5. Step 5: Solve for x
   x = 794,867,643,362.25/431,976
6. Step 6: Final answer
   x = 1,840,073.62