Finding the Third Proportional to 30,261,038.50 and 64,930,454

Step by Step Solution

1. Step 1: Write the proportion equation
   30,261,038.50 : 64,930,454 = 64,930,454 : x
2. Step 2: Convert to fraction form
   30,261,038.50/64,930,454 = 64,930,454/x
3. Step 3: Cross multiply
   30,261,038.50x = 64,930,454 × 64,930,454
4. Step 4: Simplify right side
   30,261,038.50x = 4,215,963,856,646,116
5. Step 5: Solve for x
   x = 4,215,963,856,646,116/30,261,038.50
6. Step 6: Final answer
   x = 139,319,866.92