Finding the Third Proportional to 42,017,940 and 91,397,808

Step by Step Solution

1. Step 1: Write the proportion equation
   42,017,940 : 91,397,808 = 91,397,808 : x
2. Step 2: Convert to fraction form
   42,017,940/91,397,808 = 91,397,808/x
3. Step 3: Cross multiply
   42,017,940x = 91,397,808 × 91,397,808
4. Step 4: Simplify right side
   42,017,940x = 8,353,559,307,204,864
5. Step 5: Solve for x
   x = 8,353,559,307,204,864/42,017,940
6. Step 6: Final answer
   x = 198,809,349.23