Finding the Third Proportional to 56,980 and 88,457

Step by Step Solution

1. Step 1: Write the proportion equation
   56,980 : 88,457 = 88,457 : x
2. Step 2: Convert to fraction form
   56,980/88,457 = 88,457/x
3. Step 3: Cross multiply
   56,980x = 88,457 × 88,457
4. Step 4: Simplify right side
   56,980x = 7,824,640,849
5. Step 5: Solve for x
   x = 7,824,640,849/56,980
6. Step 6: Final answer
   x = 137,322.58