Finding the Third Proportional to 38,871,862 and 89,990,743

Step by Step Solution

1. Step 1: Write the proportion equation
   38,871,862 : 89,990,743 = 89,990,743 : x
2. Step 2: Convert to fraction form
   38,871,862/89,990,743 = 89,990,743/x
3. Step 3: Cross multiply
   38,871,862x = 89,990,743 × 89,990,743
4. Step 4: Simplify right side
   38,871,862x = 8,098,333,825,692,049
5. Step 5: Solve for x
   x = 8,098,333,825,692,049/38,871,862
6. Step 6: Final answer
   x = 208,334,085.61