Finding the Third Proportional to 58,224 and 89,688

Step by Step Solution

1. Step 1: Write the proportion equation
   58,224 : 89,688 = 89,688 : x
2. Step 2: Convert to fraction form
   58,224/89,688 = 89,688/x
3. Step 3: Cross multiply
   58,224x = 89,688 × 89,688
4. Step 4: Simplify right side
   58,224x = 8,043,937,344
5. Step 5: Solve for x
   x = 8,043,937,344/58,224
6. Step 6: Final answer
   x = 138,155.01