Finding the Third Proportional to 66,862 and 146,845.50

Step by Step Solution

1. Step 1: Write the proportion equation
   66,862 : 146,845.50 = 146,845.50 : x
2. Step 2: Convert to fraction form
   66,862/146,845.50 = 146,845.50/x
3. Step 3: Cross multiply
   66,862x = 146,845.50 × 146,845.50
4. Step 4: Simplify right side
   66,862x = 21,563,600,870.25
5. Step 5: Solve for x
   x = 21,563,600,870.25/66,862
6. Step 6: Final answer
   x = 322,509.06