Finding the Third Proportional to 58,278 and 89,113

Step by Step Solution

1. Step 1: Write the proportion equation
   58,278 : 89,113 = 89,113 : x
2. Step 2: Convert to fraction form
   58,278/89,113 = 89,113/x
3. Step 3: Cross multiply
   58,278x = 89,113 × 89,113
4. Step 4: Simplify right side
   58,278x = 7,941,126,769
5. Step 5: Solve for x
   x = 7,941,126,769/58,278
6. Step 6: Final answer
   x = 136,262.86