Finding the Third Proportional to 140,985,306 and 215,530,196

Step by Step Solution

1. Step 1: Write the proportion equation
   140,985,306 : 215,530,196 = 215,530,196 : x
2. Step 2: Convert to fraction form
   140,985,306/215,530,196 = 215,530,196/x
3. Step 3: Cross multiply
   140,985,306x = 215,530,196 × 215,530,196
4. Step 4: Simplify right side
   140,985,306x = 46,453,265,387,798,416
5. Step 5: Solve for x
   x = 46,453,265,387,798,416/140,985,306
6. Step 6: Final answer
   x = 329,490,119.97