Finding the Third Proportional to 136,332 and 279,447.75

Step by Step Solution

1. Step 1: Write the proportion equation
   136,332 : 279,447.75 = 279,447.75 : x
2. Step 2: Convert to fraction form
   136,332/279,447.75 = 279,447.75/x
3. Step 3: Cross multiply
   136,332x = 279,447.75 × 279,447.75
4. Step 4: Simplify right side
   136,332x = 78,091,044,980.06
5. Step 5: Solve for x
   x = 78,091,044,980.06/136,332
6. Step 6: Final answer
   x = 572,800.55