Finding the Third Proportional to 573,501.50 and 891,609

Step by Step Solution

1. Step 1: Write the proportion equation
   573,501.50 : 891,609 = 891,609 : x
2. Step 2: Convert to fraction form
   573,501.50/891,609 = 891,609/x
3. Step 3: Cross multiply
   573,501.50x = 891,609 × 891,609
4. Step 4: Simplify right side
   573,501.50x = 794,966,608,881
5. Step 5: Solve for x
   x = 794,966,608,881/573,501.50
6. Step 6: Final answer
   x = 1,386,163.09