Finding the Third Proportional to 58,602 and 90,334.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,602 : 90,334.50 = 90,334.50 : x
2. Step 2: Convert to fraction form
   58,602/90,334.50 = 90,334.50/x
3. Step 3: Cross multiply
   58,602x = 90,334.50 × 90,334.50
4. Step 4: Simplify right side
   58,602x = 8,160,321,890.25
5. Step 5: Solve for x
   x = 8,160,321,890.25/58,602
6. Step 6: Final answer
   x = 139,249.89