Finding the Third Proportional to 93,672 and 142,840

Step by Step Solution

1. Step 1: Write the proportion equation
   93,672 : 142,840 = 142,840 : x
2. Step 2: Convert to fraction form
   93,672/142,840 = 142,840/x
3. Step 3: Cross multiply
   93,672x = 142,840 × 142,840
4. Step 4: Simplify right side
   93,672x = 20,403,265,600
5. Step 5: Solve for x
   x = 20,403,265,600/93,672
6. Step 6: Final answer
   x = 217,816.06