Finding the Third Proportional to 510,320 and 730,480

Step by Step Solution

1. Step 1: Write the proportion equation
   510,320 : 730,480 = 730,480 : x
2. Step 2: Convert to fraction form
   510,320/730,480 = 730,480/x
3. Step 3: Cross multiply
   510,320x = 730,480 × 730,480
4. Step 4: Simplify right side
   510,320x = 533,601,030,400
5. Step 5: Solve for x
   x = 533,601,030,400/510,320
6. Step 6: Final answer
   x = 1,045,620.45