Finding the Third Proportional to 58,064 and 89,715

Step by Step Solution

1. Step 1: Write the proportion equation
   58,064 : 89,715 = 89,715 : x
2. Step 2: Convert to fraction form
   58,064/89,715 = 89,715/x
3. Step 3: Cross multiply
   58,064x = 89,715 × 89,715
4. Step 4: Simplify right side
   58,064x = 8,048,781,225
5. Step 5: Solve for x
   x = 8,048,781,225/58,064
6. Step 6: Final answer
   x = 138,619.13