Finding the Third Proportional to 760.50 and 890.63

Step by Step Solution

1. Step 1: Write the proportion equation
   760.50 : 890.63 = 890.63 : x
2. Step 2: Convert to fraction form
   760.50/890.63 = 890.63/x
3. Step 3: Cross multiply
   760.50x = 890.63 × 890.63
4. Step 4: Simplify right side
   760.50x = 793,212.89
5. Step 5: Solve for x
   x = 793,212.89/760.50
6. Step 6: Final answer
   x = 1,043.01