Finding the Third Proportional to 139,159,016.25 and 274,805,437.50

Step by Step Solution

1. Step 1: Write the proportion equation
   139,159,016.25 : 274,805,437.50 = 274,805,437.50 : x
2. Step 2: Convert to fraction form
   139,159,016.25/274,805,437.50 = 274,805,437.50/x
3. Step 3: Cross multiply
   139,159,016.25x = 274,805,437.50 × 274,805,437.50
4. Step 4: Simplify right side
   139,159,016.25x = 75,518,028,479,566,400
5. Step 5: Solve for x
   x = 75,518,028,479,566,400/139,159,016.25
6. Step 6: Final answer
   x = 542,674,348.49