Finding the Third Proportional to 60,931 and 90,886

Step by Step Solution

1. Step 1: Write the proportion equation
   60,931 : 90,886 = 90,886 : x
2. Step 2: Convert to fraction form
   60,931/90,886 = 90,886/x
3. Step 3: Cross multiply
   60,931x = 90,886 × 90,886
4. Step 4: Simplify right side
   60,931x = 8,260,264,996
5. Step 5: Solve for x
   x = 8,260,264,996/60,931
6. Step 6: Final answer
   x = 135,567.53