Finding the Third Proportional to 34,809.75 and 71,259.75

Step by Step Solution

1. Step 1: Write the proportion equation
   34,809.75 : 71,259.75 = 71,259.75 : x
2. Step 2: Convert to fraction form
   34,809.75/71,259.75 = 71,259.75/x
3. Step 3: Cross multiply
   34,809.75x = 71,259.75 × 71,259.75
4. Step 4: Simplify right side
   34,809.75x = 5,077,951,970.06
5. Step 5: Solve for x
   x = 5,077,951,970.06/34,809.75
6. Step 6: Final answer
   x = 145,877.29