Finding the Third Proportional to 864,284 and 1,308,350

Step by Step Solution

1. Step 1: Write the proportion equation
   864,284 : 1,308,350 = 1,308,350 : x
2. Step 2: Convert to fraction form
   864,284/1,308,350 = 1,308,350/x
3. Step 3: Cross multiply
   864,284x = 1,308,350 × 1,308,350
4. Step 4: Simplify right side
   864,284x = 1,711,779,722,500
5. Step 5: Solve for x
   x = 1,711,779,722,500/864,284
6. Step 6: Final answer
   x = 1,980,575.51