Finding the Third Proportional to 61,174.50 and 90,624.75

Step by Step Solution

1. Step 1: Write the proportion equation
   61,174.50 : 90,624.75 = 90,624.75 : x
2. Step 2: Convert to fraction form
   61,174.50/90,624.75 = 90,624.75/x
3. Step 3: Cross multiply
   61,174.50x = 90,624.75 × 90,624.75
4. Step 4: Simplify right side
   61,174.50x = 8,212,845,312.56
5. Step 5: Solve for x
   x = 8,212,845,312.56/61,174.50
6. Step 6: Final answer
   x = 134,252.76