Finding the Third Proportional to 389,767.50 and 609,264

Step by Step Solution

1. Step 1: Write the proportion equation
   389,767.50 : 609,264 = 609,264 : x
2. Step 2: Convert to fraction form
   389,767.50/609,264 = 609,264/x
3. Step 3: Cross multiply
   389,767.50x = 609,264 × 609,264
4. Step 4: Simplify right side
   389,767.50x = 371,202,621,696
5. Step 5: Solve for x
   x = 371,202,621,696/389,767.50
6. Step 6: Final answer
   x = 952,369.35