Finding the Third Proportional to 59,971.50 and 90,112.50

Step by Step Solution

1. Step 1: Write the proportion equation
   59,971.50 : 90,112.50 = 90,112.50 : x
2. Step 2: Convert to fraction form
   59,971.50/90,112.50 = 90,112.50/x
3. Step 3: Cross multiply
   59,971.50x = 90,112.50 × 90,112.50
4. Step 4: Simplify right side
   59,971.50x = 8,120,262,656.25
5. Step 5: Solve for x
   x = 8,120,262,656.25/59,971.50
6. Step 6: Final answer
   x = 135,402.03