Finding the Third Proportional to 147,027 and 318,947.25

Step by Step Solution

1. Step 1: Write the proportion equation
   147,027 : 318,947.25 = 318,947.25 : x
2. Step 2: Convert to fraction form
   147,027/318,947.25 = 318,947.25/x
3. Step 3: Cross multiply
   147,027x = 318,947.25 × 318,947.25
4. Step 4: Simplify right side
   147,027x = 101,727,348,282.56
5. Step 5: Solve for x
   x = 101,727,348,282.56/147,027
6. Step 6: Final answer
   x = 691,895.69