Finding the Third Proportional to 91,596,899 and 197,542,300

Step by Step Solution

1. Step 1: Write the proportion equation
   91,596,899 : 197,542,300 = 197,542,300 : x
2. Step 2: Convert to fraction form
   91,596,899/197,542,300 = 197,542,300/x
3. Step 3: Cross multiply
   91,596,899x = 197,542,300 × 197,542,300
4. Step 4: Simplify right side
   91,596,899x = 39,022,960,289,290,000
5. Step 5: Solve for x
   x = 39,022,960,289,290,000/91,596,899
6. Step 6: Final answer
   x = 426,029,272.99