Finding the Third Proportional to 10,279,242,068.25 and 13,869,111,121.88

Step by Step Solution

1. Step 1: Write the proportion equation
   10,279,242,068.25 : 13,869,111,121.88 = 13,869,111,121.88 : x
2. Step 2: Convert to fraction form
   10,279,242,068.25/13,869,111,121.88 = 13,869,111,121.88/x
3. Step 3: Cross multiply
   10,279,242,068.25x = 13,869,111,121.88 × 13,869,111,121.88
4. Step 4: Simplify right side
   10,279,242,068.25x = 192,352,243,310,916,829,184
5. Step 5: Solve for x
   x = 192,352,243,310,916,829,184/10,279,242,068.25
6. Step 6: Final answer
   x = 18,712,687,378.48