Finding the Third Proportional to 19,781,754 and 42,176,406

Step by Step Solution

1. Step 1: Write the proportion equation
   19,781,754 : 42,176,406 = 42,176,406 : x
2. Step 2: Convert to fraction form
   19,781,754/42,176,406 = 42,176,406/x
3. Step 3: Cross multiply
   19,781,754x = 42,176,406 × 42,176,406
4. Step 4: Simplify right side
   19,781,754x = 1,778,849,223,076,836
5. Step 5: Solve for x
   x = 1,778,849,223,076,836/19,781,754
6. Step 6: Final answer
   x = 89,923,735.94