Finding the Third Proportional to 30,866,354 and 65,832,117.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,866,354 : 65,832,117.50 = 65,832,117.50 : x
2. Step 2: Convert to fraction form
   30,866,354/65,832,117.50 = 65,832,117.50/x
3. Step 3: Cross multiply
   30,866,354x = 65,832,117.50 × 65,832,117.50
4. Step 4: Simplify right side
   30,866,354x = 4,333,867,694,533,806
5. Step 5: Solve for x
   x = 4,333,867,694,533,806/30,866,354
6. Step 6: Final answer
   x = 140,407,503.09