Finding the Third Proportional to 78,090,426,474 and 109,968,528,441

Step by Step Solution

1. Step 1: Write the proportion equation
   78,090,426,474 : 109,968,528,441 = 109,968,528,441 : x
2. Step 2: Convert to fraction form
   78,090,426,474/109,968,528,441 = 109,968,528,441/x
3. Step 3: Cross multiply
   78,090,426,474x = 109,968,528,441 × 109,968,528,441
4. Step 4: Simplify right side
   78,090,426,474x = 12,093,077,247,479,026,548,736
5. Step 5: Solve for x
   x = 12,093,077,247,479,026,548,736/78,090,426,474
6. Step 6: Final answer
   x = 154,859,920,652.44