Finding the Third Proportional to 89,391,327 and 136,686,118.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,391,327 : 136,686,118.50 = 136,686,118.50 : x
2. Step 2: Convert to fraction form
   89,391,327/136,686,118.50 = 136,686,118.50/x
3. Step 3: Cross multiply
   89,391,327x = 136,686,118.50 × 136,686,118.50
4. Step 4: Simplify right side
   89,391,327x = 18,683,094,990,596,044
5. Step 5: Solve for x
   x = 18,683,094,990,596,044/89,391,327
6. Step 6: Final answer
   x = 209,003,441.58