Finding the Third Proportional to 112,770 and 242,550

Step by Step Solution

1. Step 1: Write the proportion equation
   112,770 : 242,550 = 242,550 : x
2. Step 2: Convert to fraction form
   112,770/242,550 = 242,550/x
3. Step 3: Cross multiply
   112,770x = 242,550 × 242,550
4. Step 4: Simplify right side
   112,770x = 58,830,502,500
5. Step 5: Solve for x
   x = 58,830,502,500/112,770
6. Step 6: Final answer
   x = 521,685.75