Finding the Third Proportional to 42,036,768 and 90,556,128

Step by Step Solution

1. Step 1: Write the proportion equation
   42,036,768 : 90,556,128 = 90,556,128 : x
2. Step 2: Convert to fraction form
   42,036,768/90,556,128 = 90,556,128/x
3. Step 3: Cross multiply
   42,036,768x = 90,556,128 × 90,556,128
4. Step 4: Simplify right side
   42,036,768x = 8,200,412,318,352,384
5. Step 5: Solve for x
   x = 8,200,412,318,352,384/42,036,768
6. Step 6: Final answer
   x = 195,077,136.24