Finding the Third Proportional to 864,214 and 1,308,262

Step by Step Solution

1. Step 1: Write the proportion equation
   864,214 : 1,308,262 = 1,308,262 : x
2. Step 2: Convert to fraction form
   864,214/1,308,262 = 1,308,262/x
3. Step 3: Cross multiply
   864,214x = 1,308,262 × 1,308,262
4. Step 4: Simplify right side
   864,214x = 1,711,549,460,644
5. Step 5: Solve for x
   x = 1,711,549,460,644/864,214
6. Step 6: Final answer
   x = 1,980,469.49