Finding the Third Proportional to 19,817,882 and 42,017,320

Step by Step Solution

1. Step 1: Write the proportion equation
   19,817,882 : 42,017,320 = 42,017,320 : x
2. Step 2: Convert to fraction form
   19,817,882/42,017,320 = 42,017,320/x
3. Step 3: Cross multiply
   19,817,882x = 42,017,320 × 42,017,320
4. Step 4: Simplify right side
   19,817,882x = 1,765,455,179,982,400
5. Step 5: Solve for x
   x = 1,765,455,179,982,400/19,817,882
6. Step 6: Final answer
   x = 89,083,948.53