Finding the Third Proportional to 864,278 and 1,308,341

Step by Step Solution

1. Step 1: Write the proportion equation
   864,278 : 1,308,341 = 1,308,341 : x
2. Step 2: Convert to fraction form
   864,278/1,308,341 = 1,308,341/x
3. Step 3: Cross multiply
   864,278x = 1,308,341 × 1,308,341
4. Step 4: Simplify right side
   864,278x = 1,711,756,172,281
5. Step 5: Solve for x
   x = 1,711,756,172,281/864,278
6. Step 6: Final answer
   x = 1,980,562.01