Finding the Third Proportional to 630,255 and 918,300

Step by Step Solution

1. Step 1: Write the proportion equation
   630,255 : 918,300 = 918,300 : x
2. Step 2: Convert to fraction form
   630,255/918,300 = 918,300/x
3. Step 3: Cross multiply
   630,255x = 918,300 × 918,300
4. Step 4: Simplify right side
   630,255x = 843,274,890,000
5. Step 5: Solve for x
   x = 843,274,890,000/630,255
6. Step 6: Final answer
   x = 1,337,990.00