Finding the Third Proportional to 58,142.25 and 87,214.50

Step by Step Solution

1. Step 1: Write the proportion equation
   58,142.25 : 87,214.50 = 87,214.50 : x
2. Step 2: Convert to fraction form
   58,142.25/87,214.50 = 87,214.50/x
3. Step 3: Cross multiply
   58,142.25x = 87,214.50 × 87,214.50
4. Step 4: Simplify right side
   58,142.25x = 7,606,369,010.25
5. Step 5: Solve for x
   x = 7,606,369,010.25/58,142.25
6. Step 6: Final answer
   x = 130,823.44