Finding the Third Proportional to 86,820,106.50 and 180,785,142

Step by Step Solution

1. Step 1: Write the proportion equation
   86,820,106.50 : 180,785,142 = 180,785,142 : x
2. Step 2: Convert to fraction form
   86,820,106.50/180,785,142 = 180,785,142/x
3. Step 3: Cross multiply
   86,820,106.50x = 180,785,142 × 180,785,142
4. Step 4: Simplify right side
   86,820,106.50x = 32,683,267,567,960,164
5. Step 5: Solve for x
   x = 32,683,267,567,960,164/86,820,106.50
6. Step 6: Final answer
   x = 376,448,139.56