Finding the Third Proportional to 2,499,217,210.13 and 5,205,293,158.50

Step by Step Solution

1. Step 1: Write the proportion equation
   2,499,217,210.13 : 5,205,293,158.50 = 5,205,293,158.50 : x
2. Step 2: Convert to fraction form
   2,499,217,210.13/5,205,293,158.50 = 5,205,293,158.50/x
3. Step 3: Cross multiply
   2,499,217,210.13x = 5,205,293,158.50 × 5,205,293,158.50
4. Step 4: Simplify right side
   2,499,217,210.13x = 27,095,076,865,926,905,856
5. Step 5: Solve for x
   x = 27,095,076,865,926,905,856/2,499,217,210.13
6. Step 6: Final answer
   x = 10,841,425,369.57