Finding the Third Proportional to 409,644 and 891,184.50

Step by Step Solution

1. Step 1: Write the proportion equation
   409,644 : 891,184.50 = 891,184.50 : x
2. Step 2: Convert to fraction form
   409,644/891,184.50 = 891,184.50/x
3. Step 3: Cross multiply
   409,644x = 891,184.50 × 891,184.50
4. Step 4: Simplify right side
   409,644x = 794,209,813,040.25
5. Step 5: Solve for x
   x = 794,209,813,040.25/409,644
6. Step 6: Final answer
   x = 1,938,780.53