Finding the Third Proportional to 72,140 and 158,118

Step by Step Solution

1. Step 1: Write the proportion equation
   72,140 : 158,118 = 158,118 : x
2. Step 2: Convert to fraction form
   72,140/158,118 = 158,118/x
3. Step 3: Cross multiply
   72,140x = 158,118 × 158,118
4. Step 4: Simplify right side
   72,140x = 25,001,301,924
5. Step 5: Solve for x
   x = 25,001,301,924/72,140
6. Step 6: Final answer
   x = 346,566.43