Finding the Third Proportional to 89,258,911.88 and 137,927,650.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,258,911.88 : 137,927,650.50 = 137,927,650.50 : x
2. Step 2: Convert to fraction form
   89,258,911.88/137,927,650.50 = 137,927,650.50/x
3. Step 3: Cross multiply
   89,258,911.88x = 137,927,650.50 × 137,927,650.50
4. Step 4: Simplify right side
   89,258,911.88x = 19,024,036,772,450,152
5. Step 5: Solve for x
   x = 19,024,036,772,450,152/89,258,911.88
6. Step 6: Final answer
   x = 213,133,191.66