Finding the Third Proportional to 58,063.88 and 89,738.63

Step by Step Solution

1. Step 1: Write the proportion equation
   58,063.88 : 89,738.63 = 89,738.63 : x
2. Step 2: Convert to fraction form
   58,063.88/89,738.63 = 89,738.63/x
3. Step 3: Cross multiply
   58,063.88x = 89,738.63 × 89,738.63
4. Step 4: Simplify right side
   58,063.88x = 8,053,020,816.89
5. Step 5: Solve for x
   x = 8,053,020,816.89/58,063.88
6. Step 6: Final answer
   x = 138,692.45