Finding the Third Proportional to 70,489.50 and 103,787.25

Step by Step Solution

1. Step 1: Write the proportion equation
   70,489.50 : 103,787.25 = 103,787.25 : x
2. Step 2: Convert to fraction form
   70,489.50/103,787.25 = 103,787.25/x
3. Step 3: Cross multiply
   70,489.50x = 103,787.25 × 103,787.25
4. Step 4: Simplify right side
   70,489.50x = 10,771,793,262.56
5. Step 5: Solve for x
   x = 10,771,793,262.56/70,489.50
6. Step 6: Final answer
   x = 152,814.15