Finding the Third Proportional to 69,472.50 and 107,641.50

Step by Step Solution

1. Step 1: Write the proportion equation
   69,472.50 : 107,641.50 = 107,641.50 : x
2. Step 2: Convert to fraction form
   69,472.50/107,641.50 = 107,641.50/x
3. Step 3: Cross multiply
   69,472.50x = 107,641.50 × 107,641.50
4. Step 4: Simplify right side
   69,472.50x = 11,586,692,522.25
5. Step 5: Solve for x
   x = 11,586,692,522.25/69,472.50
6. Step 6: Final answer
   x = 166,780.99