Finding the Third Proportional to 163,617,820.50 and 247,123,453.50

Step by Step Solution

1. Step 1: Write the proportion equation
   163,617,820.50 : 247,123,453.50 = 247,123,453.50 : x
2. Step 2: Convert to fraction form
   163,617,820.50/247,123,453.50 = 247,123,453.50/x
3. Step 3: Cross multiply
   163,617,820.50x = 247,123,453.50 × 247,123,453.50
4. Step 4: Simplify right side
   163,617,820.50x = 61,070,001,269,766,664
5. Step 5: Solve for x
   x = 61,070,001,269,766,664/163,617,820.50
6. Step 6: Final answer
   x = 373,247,859.45