Finding the Third Proportional to 51,243 and 65,476.50

Step by Step Solution

1. Step 1: Write the proportion equation
   51,243 : 65,476.50 = 65,476.50 : x
2. Step 2: Convert to fraction form
   51,243/65,476.50 = 65,476.50/x
3. Step 3: Cross multiply
   51,243x = 65,476.50 × 65,476.50
4. Step 4: Simplify right side
   51,243x = 4,287,172,052.25
5. Step 5: Solve for x
   x = 4,287,172,052.25/51,243
6. Step 6: Final answer
   x = 83,663.56