Finding the Third Proportional to 196,136,499,672 and 280,475,528,544

Step by Step Solution

1. Step 1: Write the proportion equation
   196,136,499,672 : 280,475,528,544 = 280,475,528,544 : x
2. Step 2: Convert to fraction form
   196,136,499,672/280,475,528,544 = 280,475,528,544/x
3. Step 3: Cross multiply
   196,136,499,672x = 280,475,528,544 × 280,475,528,544
4. Step 4: Simplify right side
   196,136,499,672x = 78,666,522,112,036,156,997,632
5. Step 5: Solve for x
   x = 78,666,522,112,036,156,997,632/196,136,499,672
6. Step 6: Final answer
   x = 401,080,483,457.14