Finding the Third Proportional to 58,160.53 and 89,803.69

Step by Step Solution

1. Step 1: Write the proportion equation
   58,160.53 : 89,803.69 = 89,803.69 : x
2. Step 2: Convert to fraction form
   58,160.53/89,803.69 = 89,803.69/x
3. Step 3: Cross multiply
   58,160.53x = 89,803.69 × 89,803.69
4. Step 4: Simplify right side
   58,160.53x = 8,064,702,288.60
5. Step 5: Solve for x
   x = 8,064,702,288.60/58,160.53
6. Step 6: Final answer
   x = 138,662.80