Finding the Third Proportional to 1,385,984,913 and 2,113,886,412

Step by Step Solution

1. Step 1: Write the proportion equation
   1,385,984,913 : 2,113,886,412 = 2,113,886,412 : x
2. Step 2: Convert to fraction form
   1,385,984,913/2,113,886,412 = 2,113,886,412/x
3. Step 3: Cross multiply
   1,385,984,913x = 2,113,886,412 × 2,113,886,412
4. Step 4: Simplify right side
   1,385,984,913x = 4,468,515,762,838,233,600
5. Step 5: Solve for x
   x = 4,468,515,762,838,233,600/1,385,984,913
6. Step 6: Final answer
   x = 3,224,072,441.86