Finding the Third Proportional to 51,526.50 and 81,964.88

Step by Step Solution

1. Step 1: Write the proportion equation
   51,526.50 : 81,964.88 = 81,964.88 : x
2. Step 2: Convert to fraction form
   51,526.50/81,964.88 = 81,964.88/x
3. Step 3: Cross multiply
   51,526.50x = 81,964.88 × 81,964.88
4. Step 4: Simplify right side
   51,526.50x = 6,718,240,733.77
5. Step 5: Solve for x
   x = 6,718,240,733.77/51,526.50
6. Step 6: Final answer
   x = 130,384.19