Finding the Third Proportional to 52,710 and 81,528.50

Step by Step Solution

1. Step 1: Write the proportion equation
   52,710 : 81,528.50 = 81,528.50 : x
2. Step 2: Convert to fraction form
   52,710/81,528.50 = 81,528.50/x
3. Step 3: Cross multiply
   52,710x = 81,528.50 × 81,528.50
4. Step 4: Simplify right side
   52,710x = 6,646,896,312.25
5. Step 5: Solve for x
   x = 6,646,896,312.25/52,710
6. Step 6: Final answer
   x = 126,103.14