Finding the Third Proportional to 72,082,199.25 and 149,274,418.50

Step by Step Solution

1. Step 1: Write the proportion equation
   72,082,199.25 : 149,274,418.50 = 149,274,418.50 : x
2. Step 2: Convert to fraction form
   72,082,199.25/149,274,418.50 = 149,274,418.50/x
3. Step 3: Cross multiply
   72,082,199.25x = 149,274,418.50 × 149,274,418.50
4. Step 4: Simplify right side
   72,082,199.25x = 22,282,852,018,513,144
5. Step 5: Solve for x
   x = 22,282,852,018,513,144/72,082,199.25
6. Step 6: Final answer
   x = 309,131,134.32