Finding the Third Proportional to 58,911 and 89,224.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,911 : 89,224.50 = 89,224.50 : x
2. Step 2: Convert to fraction form
   58,911/89,224.50 = 89,224.50/x
3. Step 3: Cross multiply
   58,911x = 89,224.50 × 89,224.50
4. Step 4: Simplify right side
   58,911x = 7,961,011,400.25
5. Step 5: Solve for x
   x = 7,961,011,400.25/58,911
6. Step 6: Final answer
   x = 135,136.25