Finding the Third Proportional to 58,943.50 and 90,136.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,943.50 : 90,136.50 = 90,136.50 : x
2. Step 2: Convert to fraction form
   58,943.50/90,136.50 = 90,136.50/x
3. Step 3: Cross multiply
   58,943.50x = 90,136.50 × 90,136.50
4. Step 4: Simplify right side
   58,943.50x = 8,124,588,632.25
5. Step 5: Solve for x
   x = 8,124,588,632.25/58,943.50
6. Step 6: Final answer
   x = 137,836.89