Finding the Third Proportional to 58,457.50 and 91,108.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,457.50 : 91,108.50 = 91,108.50 : x
2. Step 2: Convert to fraction form
   58,457.50/91,108.50 = 91,108.50/x
3. Step 3: Cross multiply
   58,457.50x = 91,108.50 × 91,108.50
4. Step 4: Simplify right side
   58,457.50x = 8,300,758,772.25
5. Step 5: Solve for x
   x = 8,300,758,772.25/58,457.50
6. Step 6: Final answer
   x = 141,996.47