Finding the Third Proportional to 30,294,738 and 64,929,577.50

Step by Step Solution

1. Step 1: Write the proportion equation
   30,294,738 : 64,929,577.50 = 64,929,577.50 : x
2. Step 2: Convert to fraction form
   30,294,738/64,929,577.50 = 64,929,577.50/x
3. Step 3: Cross multiply
   30,294,738x = 64,929,577.50 × 64,929,577.50
4. Step 4: Simplify right side
   30,294,738x = 4,215,850,034,328,506
5. Step 5: Solve for x
   x = 4,215,850,034,328,506/30,294,738
6. Step 6: Final answer
   x = 139,161,132.02