Finding the Third Proportional to 272,870 and 559,264

Step by Step Solution

1. Step 1: Write the proportion equation
   272,870 : 559,264 = 559,264 : x
2. Step 2: Convert to fraction form
   272,870/559,264 = 559,264/x
3. Step 3: Cross multiply
   272,870x = 559,264 × 559,264
4. Step 4: Simplify right side
   272,870x = 312,776,221,696
5. Step 5: Solve for x
   x = 312,776,221,696/272,870
6. Step 6: Final answer
   x = 1,146,246.28