Finding the Third Proportional to 31,875.75 and 69,813

Step by Step Solution

1. Step 1: Write the proportion equation
   31,875.75 : 69,813 = 69,813 : x
2. Step 2: Convert to fraction form
   31,875.75/69,813 = 69,813/x
3. Step 3: Cross multiply
   31,875.75x = 69,813 × 69,813
4. Step 4: Simplify right side
   31,875.75x = 4,873,854,969
5. Step 5: Solve for x
   x = 4,873,854,969/31,875.75
6. Step 6: Final answer
   x = 152,901.66