Finding the Third Proportional to 115,046,436 and 155,485,780

Step by Step Solution

1. Step 1: Write the proportion equation
   115,046,436 : 155,485,780 = 155,485,780 : x
2. Step 2: Convert to fraction form
   115,046,436/155,485,780 = 155,485,780/x
3. Step 3: Cross multiply
   115,046,436x = 155,485,780 × 155,485,780
4. Step 4: Simplify right side
   115,046,436x = 24,175,827,782,208,400
5. Step 5: Solve for x
   x = 24,175,827,782,208,400/115,046,436
6. Step 6: Final answer
   x = 210,139,736.81