Finding the Third Proportional to 111,272,429 and 170,213,196

Step by Step Solution

1. Step 1: Write the proportion equation
   111,272,429 : 170,213,196 = 170,213,196 : x
2. Step 2: Convert to fraction form
   111,272,429/170,213,196 = 170,213,196/x
3. Step 3: Cross multiply
   111,272,429x = 170,213,196 × 170,213,196
4. Step 4: Simplify right side
   111,272,429x = 28,972,532,092,534,416
5. Step 5: Solve for x
   x = 28,972,532,092,534,416/111,272,429
6. Step 6: Final answer
   x = 260,374,760.87