Finding the Third Proportional to 42,017,780 and 91,397,488

Step by Step Solution

1. Step 1: Write the proportion equation
   42,017,780 : 91,397,488 = 91,397,488 : x
2. Step 2: Convert to fraction form
   42,017,780/91,397,488 = 91,397,488/x
3. Step 3: Cross multiply
   42,017,780x = 91,397,488 × 91,397,488
4. Step 4: Simplify right side
   42,017,780x = 8,353,500,812,710,144
5. Step 5: Solve for x
   x = 8,353,500,812,710,144/42,017,780
6. Step 6: Final answer
   x = 198,808,714.14