Finding the Third Proportional to 90,045 and 120,838.50

Step by Step Solution

1. Step 1: Write the proportion equation
   90,045 : 120,838.50 = 120,838.50 : x
2. Step 2: Convert to fraction form
   90,045/120,838.50 = 120,838.50/x
3. Step 3: Cross multiply
   90,045x = 120,838.50 × 120,838.50
4. Step 4: Simplify right side
   90,045x = 14,601,943,082.25
5. Step 5: Solve for x
   x = 14,601,943,082.25/90,045
6. Step 6: Final answer
   x = 162,162.73