Finding the Third Proportional to 56,875.50 and 89,214.75

Step by Step Solution

1. Step 1: Write the proportion equation
   56,875.50 : 89,214.75 = 89,214.75 : x
2. Step 2: Convert to fraction form
   56,875.50/89,214.75 = 89,214.75/x
3. Step 3: Cross multiply
   56,875.50x = 89,214.75 × 89,214.75
4. Step 4: Simplify right side
   56,875.50x = 7,959,271,617.56
5. Step 5: Solve for x
   x = 7,959,271,617.56/56,875.50
6. Step 6: Final answer
   x = 139,942.01