Finding the Third Proportional to 35,687.25 and 72,947.25

Step by Step Solution

1. Step 1: Write the proportion equation
   35,687.25 : 72,947.25 = 72,947.25 : x
2. Step 2: Convert to fraction form
   35,687.25/72,947.25 = 72,947.25/x
3. Step 3: Cross multiply
   35,687.25x = 72,947.25 × 72,947.25
4. Step 4: Simplify right side
   35,687.25x = 5,321,301,282.56
5. Step 5: Solve for x
   x = 5,321,301,282.56/35,687.25
6. Step 6: Final answer
   x = 149,109.31