Finding the Third Proportional to 78,090,426,471 and 109,968,528,436

Step by Step Solution

1. Step 1: Write the proportion equation
   78,090,426,471 : 109,968,528,436 = 109,968,528,436 : x
2. Step 2: Convert to fraction form
   78,090,426,471/109,968,528,436 = 109,968,528,436/x
3. Step 3: Cross multiply
   78,090,426,471x = 109,968,528,436 × 109,968,528,436
4. Step 4: Simplify right side
   78,090,426,471x = 12,093,077,246,379,340,857,344
5. Step 5: Solve for x
   x = 12,093,077,246,379,340,857,344/78,090,426,471
6. Step 6: Final answer
   x = 154,859,920,644.31