Finding the Third Proportional to 31,646,376 and 64,970,424

Step by Step Solution

1. Step 1: Write the proportion equation
   31,646,376 : 64,970,424 = 64,970,424 : x
2. Step 2: Convert to fraction form
   31,646,376/64,970,424 = 64,970,424/x
3. Step 3: Cross multiply
   31,646,376x = 64,970,424 × 64,970,424
4. Step 4: Simplify right side
   31,646,376x = 4,221,155,994,739,776
5. Step 5: Solve for x
   x = 4,221,155,994,739,776/31,646,376
6. Step 6: Final answer
   x = 133,385,130.57