Finding the Third Proportional to 53,265 and 80,869.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,265 : 80,869.50 = 80,869.50 : x
2. Step 2: Convert to fraction form
   53,265/80,869.50 = 80,869.50/x
3. Step 3: Cross multiply
   53,265x = 80,869.50 × 80,869.50
4. Step 4: Simplify right side
   53,265x = 6,539,876,030.25
5. Step 5: Solve for x
   x = 6,539,876,030.25/53,265
6. Step 6: Final answer
   x = 122,779.99