Finding the Third Proportional to 123,166,856 and 172,194,514

Step by Step Solution

1. Step 1: Write the proportion equation
   123,166,856 : 172,194,514 = 172,194,514 : x
2. Step 2: Convert to fraction form
   123,166,856/172,194,514 = 172,194,514/x
3. Step 3: Cross multiply
   123,166,856x = 172,194,514 × 172,194,514
4. Step 4: Simplify right side
   123,166,856x = 29,650,950,651,696,196
5. Step 5: Solve for x
   x = 29,650,950,651,696,196/123,166,856
6. Step 6: Final answer
   x = 240,738,065.54