Finding the Third Proportional to 163,617,823.50 and 247,123,458

Step by Step Solution

1. Step 1: Write the proportion equation
   163,617,823.50 : 247,123,458 = 247,123,458 : x
2. Step 2: Convert to fraction form
   163,617,823.50/247,123,458 = 247,123,458/x
3. Step 3: Cross multiply
   163,617,823.50x = 247,123,458 × 247,123,458
4. Step 4: Simplify right side
   163,617,823.50x = 61,070,003,493,877,760
5. Step 5: Solve for x
   x = 61,070,003,493,877,760/163,617,823.50
6. Step 6: Final answer
   x = 373,247,866.20