Finding the Third Proportional to 478,604.50 and 740,985

Step by Step Solution

1. Step 1: Write the proportion equation
   478,604.50 : 740,985 = 740,985 : x
2. Step 2: Convert to fraction form
   478,604.50/740,985 = 740,985/x
3. Step 3: Cross multiply
   478,604.50x = 740,985 × 740,985
4. Step 4: Simplify right side
   478,604.50x = 549,058,770,225
5. Step 5: Solve for x
   x = 549,058,770,225/478,604.50
6. Step 6: Final answer
   x = 1,147,207.71