Finding the Third Proportional to 459,031.50 and 609,813

Step by Step Solution

1. Step 1: Write the proportion equation
   459,031.50 : 609,813 = 609,813 : x
2. Step 2: Convert to fraction form
   459,031.50/609,813 = 609,813/x
3. Step 3: Cross multiply
   459,031.50x = 609,813 × 609,813
4. Step 4: Simplify right side
   459,031.50x = 371,871,894,969
5. Step 5: Solve for x
   x = 371,871,894,969/459,031.50
6. Step 6: Final answer
   x = 810,122.82