Finding the Third Proportional to 136,086 and 272,719.50

Step by Step Solution

1. Step 1: Write the proportion equation
   136,086 : 272,719.50 = 272,719.50 : x
2. Step 2: Convert to fraction form
   136,086/272,719.50 = 272,719.50/x
3. Step 3: Cross multiply
   136,086x = 272,719.50 × 272,719.50
4. Step 4: Simplify right side
   136,086x = 74,375,925,680.25
5. Step 5: Solve for x
   x = 74,375,925,680.25/136,086
6. Step 6: Final answer
   x = 546,536.20