Finding the Third Proportional to 89,015,780 and 187,596,040

Step by Step Solution

1. Step 1: Write the proportion equation
   89,015,780 : 187,596,040 = 187,596,040 : x
2. Step 2: Convert to fraction form
   89,015,780/187,596,040 = 187,596,040/x
3. Step 3: Cross multiply
   89,015,780x = 187,596,040 × 187,596,040
4. Step 4: Simplify right side
   89,015,780x = 35,192,274,223,681,600
5. Step 5: Solve for x
   x = 35,192,274,223,681,600/89,015,780
6. Step 6: Final answer
   x = 395,348,714.84