Finding the Third Proportional to 12,126,766,329 and 26,388,905,962.50

Step by Step Solution

1. Step 1: Write the proportion equation
   12,126,766,329 : 26,388,905,962.50 = 26,388,905,962.50 : x
2. Step 2: Convert to fraction form
   12,126,766,329/26,388,905,962.50 = 26,388,905,962.50/x
3. Step 3: Cross multiply
   12,126,766,329x = 26,388,905,962.50 × 26,388,905,962.50
4. Step 4: Simplify right side
   12,126,766,329x = 696,374,357,897,668,067,328
5. Step 5: Solve for x
   x = 696,374,357,897,668,067,328/12,126,766,329
6. Step 6: Final answer
   x = 57,424,571,316.46