Finding the Third Proportional to 58,872.45 and 90,994.01

Step by Step Solution

1. Step 1: Write the proportion equation
   58,872.45 : 90,994.01 = 90,994.01 : x
2. Step 2: Convert to fraction form
   58,872.45/90,994.01 = 90,994.01/x
3. Step 3: Cross multiply
   58,872.45x = 90,994.01 × 90,994.01
4. Step 4: Simplify right side
   58,872.45x = 8,279,909,457.78
5. Step 5: Solve for x
   x = 8,279,909,457.78/58,872.45
6. Step 6: Final answer
   x = 140,641.51