Finding the Third Proportional to 13,153,946,889 and 31,040,960,461.50

Step by Step Solution

1. Step 1: Write the proportion equation
   13,153,946,889 : 31,040,960,461.50 = 31,040,960,461.50 : x
2. Step 2: Convert to fraction form
   13,153,946,889/31,040,960,461.50 = 31,040,960,461.50/x
3. Step 3: Cross multiply
   13,153,946,889x = 31,040,960,461.50 × 31,040,960,461.50
4. Step 4: Simplify right side
   13,153,946,889x = 963,541,226,372,406,312,960
5. Step 5: Solve for x
   x = 963,541,226,372,406,312,960/13,153,946,889
6. Step 6: Final answer
   x = 73,251,111,206.64