Finding the Third Proportional to 45,789 and 70,861.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,789 : 70,861.50 = 70,861.50 : x
2. Step 2: Convert to fraction form
   45,789/70,861.50 = 70,861.50/x
3. Step 3: Cross multiply
   45,789x = 70,861.50 × 70,861.50
4. Step 4: Simplify right side
   45,789x = 5,021,352,182.25
5. Step 5: Solve for x
   x = 5,021,352,182.25/45,789
6. Step 6: Final answer
   x = 109,662.85