Finding the Third Proportional to 61,860 and 137,886

Step by Step Solution

1. Step 1: Write the proportion equation
   61,860 : 137,886 = 137,886 : x
2. Step 2: Convert to fraction form
   61,860/137,886 = 137,886/x
3. Step 3: Cross multiply
   61,860x = 137,886 × 137,886
4. Step 4: Simplify right side
   61,860x = 19,012,548,996
5. Step 5: Solve for x
   x = 19,012,548,996/61,860
6. Step 6: Final answer
   x = 307,348.03