Finding the Third Proportional to 45,800.50 and 72,856.50

Step by Step Solution

1. Step 1: Write the proportion equation
   45,800.50 : 72,856.50 = 72,856.50 : x
2. Step 2: Convert to fraction form
   45,800.50/72,856.50 = 72,856.50/x
3. Step 3: Cross multiply
   45,800.50x = 72,856.50 × 72,856.50
4. Step 4: Simplify right side
   45,800.50x = 5,308,069,592.25
5. Step 5: Solve for x
   x = 5,308,069,592.25/45,800.50
6. Step 6: Final answer
   x = 115,895.45