Finding the Third Proportional to 590,961 and 865,480.50

Step by Step Solution

1. Step 1: Write the proportion equation
   590,961 : 865,480.50 = 865,480.50 : x
2. Step 2: Convert to fraction form
   590,961/865,480.50 = 865,480.50/x
3. Step 3: Cross multiply
   590,961x = 865,480.50 × 865,480.50
4. Step 4: Simplify right side
   590,961x = 749,056,495,880.25
5. Step 5: Solve for x
   x = 749,056,495,880.25/590,961
6. Step 6: Final answer
   x = 1,267,522.72