Finding the Third Proportional to 111,272,588 and 170,213,250

Step by Step Solution

1. Step 1: Write the proportion equation
   111,272,588 : 170,213,250 = 170,213,250 : x
2. Step 2: Convert to fraction form
   111,272,588/170,213,250 = 170,213,250/x
3. Step 3: Cross multiply
   111,272,588x = 170,213,250 × 170,213,250
4. Step 4: Simplify right side
   111,272,588x = 28,972,550,475,562,500
5. Step 5: Solve for x
   x = 28,972,550,475,562,500/111,272,588
6. Step 6: Final answer
   x = 260,374,554.02