Finding the Third Proportional to 34,864.56 and 71,566.80

Step by Step Solution

1. Step 1: Write the proportion equation
   34,864.56 : 71,566.80 = 71,566.80 : x
2. Step 2: Convert to fraction form
   34,864.56/71,566.80 = 71,566.80/x
3. Step 3: Cross multiply
   34,864.56x = 71,566.80 × 71,566.80
4. Step 4: Simplify right side
   34,864.56x = 5,121,807,533.18
5. Step 5: Solve for x
   x = 5,121,807,533.18/34,864.56
6. Step 6: Final answer
   x = 146,905.85