Finding the Third Proportional to 58,757.91 and 89,513.86

Step by Step Solution

1. Step 1: Write the proportion equation
   58,757.91 : 89,513.86 = 89,513.86 : x
2. Step 2: Convert to fraction form
   58,757.91/89,513.86 = 89,513.86/x
3. Step 3: Cross multiply
   58,757.91x = 89,513.86 × 89,513.86
4. Step 4: Simplify right side
   58,757.91x = 8,012,731,020.21
5. Step 5: Solve for x
   x = 8,012,731,020.21/58,757.91
6. Step 6: Final answer
   x = 136,368.56