Finding the Third Proportional to 78,090,428,476 and 109,968,531,064

Step by Step Solution

1. Step 1: Write the proportion equation
   78,090,428,476 : 109,968,531,064 = 109,968,531,064 : x
2. Step 2: Convert to fraction form
   78,090,428,476/109,968,531,064 = 109,968,531,064/x
3. Step 3: Cross multiply
   78,090,428,476x = 109,968,531,064 × 109,968,531,064
4. Step 4: Simplify right side
   78,090,428,476x = 12,093,077,824,373,933,473,792
5. Step 5: Solve for x
   x = 12,093,077,824,373,933,473,792/78,090,428,476
6. Step 6: Final answer
   x = 154,859,924,069.83