Finding the Third Proportional to 56,215 and 74,833.50

Step by Step Solution

1. Step 1: Write the proportion equation
   56,215 : 74,833.50 = 74,833.50 : x
2. Step 2: Convert to fraction form
   56,215/74,833.50 = 74,833.50/x
3. Step 3: Cross multiply
   56,215x = 74,833.50 × 74,833.50
4. Step 4: Simplify right side
   56,215x = 5,600,052,722.25
5. Step 5: Solve for x
   x = 5,600,052,722.25/56,215
6. Step 6: Final answer
   x = 99,618.48