Finding the Third Proportional to 91,358,729,082 and 139,663,937,043

Step by Step Solution

1. Step 1: Write the proportion equation
   91,358,729,082 : 139,663,937,043 = 139,663,937,043 : x
2. Step 2: Convert to fraction form
   91,358,729,082/139,663,937,043 = 139,663,937,043/x
3. Step 3: Cross multiply
   91,358,729,082x = 139,663,937,043 × 139,663,937,043
4. Step 4: Simplify right side
   91,358,729,082x = 19,506,015,310,351,066,726,400
5. Step 5: Solve for x
   x = 19,506,015,310,351,066,726,400/91,358,729,082
6. Step 6: Final answer
   x = 213,510,142,997.32