Finding the Third Proportional to 513,109.50 and 804,912

Step by Step Solution

1. Step 1: Write the proportion equation
   513,109.50 : 804,912 = 804,912 : x
2. Step 2: Convert to fraction form
   513,109.50/804,912 = 804,912/x
3. Step 3: Cross multiply
   513,109.50x = 804,912 × 804,912
4. Step 4: Simplify right side
   513,109.50x = 647,883,327,744
5. Step 5: Solve for x
   x = 647,883,327,744/513,109.50
6. Step 6: Final answer
   x = 1,262,660.95