Finding the Third Proportional to 397,684,434,402 and 872,362,623,627.05

Step by Step Solution

1. Step 1: Write the proportion equation
   397,684,434,402 : 872,362,623,627.05 = 872,362,623,627.05 : x
2. Step 2: Convert to fraction form
   397,684,434,402/872,362,623,627.05 = 872,362,623,627.05/x
3. Step 3: Cross multiply
   397,684,434,402x = 872,362,623,627.05 × 872,362,623,627.05
4. Step 4: Simplify right side
   397,684,434,402x = 761,016,547,101,470,145,642,496
5. Step 5: Solve for x
   x = 761,016,547,101,470,145,642,496/397,684,434,402
6. Step 6: Final answer
   x = 1,913,619,144,399.79