Finding the Third Proportional to 53,200.13 and 80,905.50

Step by Step Solution

1. Step 1: Write the proportion equation
   53,200.13 : 80,905.50 = 80,905.50 : x
2. Step 2: Convert to fraction form
   53,200.13/80,905.50 = 80,905.50/x
3. Step 3: Cross multiply
   53,200.13x = 80,905.50 × 80,905.50
4. Step 4: Simplify right side
   53,200.13x = 6,545,699,930.25
5. Step 5: Solve for x
   x = 6,545,699,930.25/53,200.13
6. Step 6: Final answer
   x = 123,039.18