Finding the Third Proportional to 72,012 and 98,890

Step by Step Solution

1. Step 1: Write the proportion equation
   72,012 : 98,890 = 98,890 : x
2. Step 2: Convert to fraction form
   72,012/98,890 = 98,890/x
3. Step 3: Cross multiply
   72,012x = 98,890 × 98,890
4. Step 4: Simplify right side
   72,012x = 9,779,232,100
5. Step 5: Solve for x
   x = 9,779,232,100/72,012
6. Step 6: Final answer
   x = 135,800.03