Finding the Third Proportional to 42,246,519 and 90,556,221

Step by Step Solution

1. Step 1: Write the proportion equation
   42,246,519 : 90,556,221 = 90,556,221 : x
2. Step 2: Convert to fraction form
   42,246,519/90,556,221 = 90,556,221/x
3. Step 3: Cross multiply
   42,246,519x = 90,556,221 × 90,556,221
4. Step 4: Simplify right side
   42,246,519x = 8,200,429,161,800,841
5. Step 5: Solve for x
   x = 8,200,429,161,800,841/42,246,519
6. Step 6: Final answer
   x = 194,108,990.66