Finding the Third Proportional to 214,870 and 455,352

Step by Step Solution

1. Step 1: Write the proportion equation
   214,870 : 455,352 = 455,352 : x
2. Step 2: Convert to fraction form
   214,870/455,352 = 455,352/x
3. Step 3: Cross multiply
   214,870x = 455,352 × 455,352
4. Step 4: Simplify right side
   214,870x = 207,345,443,904
5. Step 5: Solve for x
   x = 207,345,443,904/214,870
6. Step 6: Final answer
   x = 964,980.89