Finding the Third Proportional to 109,788,790.50 and 230,899,774.50

Step by Step Solution

1. Step 1: Write the proportion equation
   109,788,790.50 : 230,899,774.50 = 230,899,774.50 : x
2. Step 2: Convert to fraction form
   109,788,790.50/230,899,774.50 = 230,899,774.50/x
3. Step 3: Cross multiply
   109,788,790.50x = 230,899,774.50 × 230,899,774.50
4. Step 4: Simplify right side
   109,788,790.50x = 53,314,705,864,150,848
5. Step 5: Solve for x
   x = 53,314,705,864,150,848/109,788,790.50
6. Step 6: Final answer
   x = 485,611,560.35