Finding the Third Proportional to 56,815 and 88,931

Step by Step Solution

1. Step 1: Write the proportion equation
   56,815 : 88,931 = 88,931 : x
2. Step 2: Convert to fraction form
   56,815/88,931 = 88,931/x
3. Step 3: Cross multiply
   56,815x = 88,931 × 88,931
4. Step 4: Simplify right side
   56,815x = 7,908,722,761
5. Step 5: Solve for x
   x = 7,908,722,761/56,815
6. Step 6: Final answer
   x = 139,201.32